GPT Image 2.0 プロンプト - 静かな座り姿のライフスタイルポートレート

{ "subject": { "description": "A young adult woman with a petite, slender frame is seated on a white molded plastic chair indoors. She has a short dark-brown bob and wears a fitted warm-white top with pale beige shorts. Her torso leans slightly forward, her hands overlap naturally between her thighs, her knees stay close together, and her lower legs extend diagonally toward the camera as she quietly looks up into the lens.", "mirror_rules": "This is not a mirror selfie. Preserve the real left-right relationship of the subject, crossbody chain, background posters and chairs. Do not horizontally flip the scene, and do not add a phone or mirror reflection.", "age": "young adult, approximately 20–25", "expression": { "eyes": { "look": "naturally open eyes looking directly into the camera, clear and gentle with a subtle observational quality", "energy": "quiet, restrained and mildly curious rather than flirtatious", "direction": "direct eye contact with the lens while the head remains slightly tilted" }, "mouth": { "position": "lips softly closed, corners neutral or very slightly lowered", "energy": "relaxed and unsmiling, with a small sense of suspended thought" }, "overall": "an unperformed expression, as though she had just heard the photographer call her and briefly looked up; calm, soft and faintly distant" }, "face": { "preserve_original": "Preserve the original small oval face, soft jawline, natural eye spacing, rounded almond-shaped eyes, lightly straight brows, compact nose and soft lip shape. Keep mild facial asymmetry and realistic bone structure. Do not replace the face, impose a celebrity likeness or convert it into a generic influencer face.", "makeup": "A sheer contemporary East-Asian urban beauty direction: thin natural base makeup with gentle diffusion while retaining skin depth, softly drawn grey-brown brows, minimal warm-brown shading around the eyes, a narrow inner lash line and naturally separated lashes. Use restrained blush and muted nude-pink or dusty-rose lips, without heavy contouring or metallic highlighting." } }, "hair": { "color": "natural dark brown with soft chestnut reflections under warm indoor light", "style": "a chin-to-shoulder-length short bob with a side part, loose fringe across the forehead and one side of the ends spreading slightly outward", "effect": "medium-to-full volume, gently lifted at the crown, smooth but not stiff, with irregular ends and a small amount of movement as though the hair has not fully settled after she turned her head" }, "body": { "frame": "a slender, petite bone structure with narrow shoulders, a long neck and slim limbs; the close wide-angle perspective visually lengthens the legs", "waist": "a naturally tapered waist that remains fully covered by the top and shorts, with no exposed abdomen and no extreme waist exaggeration", "chest": "the fitted low rounded-square neckline naturally defines the upper torso and bust shape. Only a modest area from the collarbones to the upper chest is visible, with realistic proportions and no exaggerated volume or compression", "legs": "the thighs remain close together and angle slightly toward the left side of the frame, with the knees close and the lower legs extending diagonally downward. The leg closer to the lens is mildly elongated by wide-angle perspective while retaining natural knee structure and muscle transitions", "skin": { "visible_areas": "Visible skin includes the face, ears, neck, collarbones, front shoulders, upper chest above the neckline, upper arms, forearms, backs of the hands, fingers, thighs below the shorts, knees, shins, ankles and part of the feet and toes. The abdomen, hips, back and buttocks remain covered.", "tone": "bright light-ivory skin with a neutral to gently warm undertone. Keep the face and body tonally consistent while allowing slight natural warmth or color variation at the knees, knuckles and ankles", "texture": "visually fine, soft and moisturized, with the imagined tactile quality of smooth, supple, slightly cool skin beneath a very thin hydrating layer. Retain subtle pores, joint creases and local color variation rather than creating waxy or plastic skin", "lighting_effect": "Large soft natural light from the front-left illuminates the face, collarbones, arms and fronts of the legs. It leaves shallow, soft shadows beside the nose, below the jaw, along the inner arms and behind the knees. Warm indoor reflections from the right gently warm the hair edges, fabric folds and side planes of the skin. The thighs and shins show gradual tonal transitions rather than a hard rim light." } }, "pose": { "position": "seated near the front of a white curved plastic chair rather than fully against its back, torso leaning slightly toward the camera, shoulders relaxed with a small height difference, head gently tilted toward the left side of the frame", "base": "hips placed near the front-center of the chair, knees kept together and ankles naturally separated. The hands overlap in front of the thighs, with one hand lightly holding a small looped strap and the wrists naturally bent", "overall": "a slightly reserved and soft posture rather than a standardized fashion pose. The body weight visibly rests on the chair, the legs extend forward to create depth, and the hair and shoulder line contain small accidental offsets" }, "clothing": { "top": { "type": "short-sleeved fitted stretch-knit or satin-touch top with a low rounded-square neckline", "color": "warm white, light ivory or softly creamy white", "details": "small gathers around the neckline and center bust, a subtle vertical gathering seam, sleeves fitted around the upper arms and natural folds around the bust, waist and underarm areas", "effect": "the fabric follows the body without looking rubberized. It has a mild silky sheen, with realistic folds and tonal variation rather than sharp wet-looking highlights" }, "bottom": { "type": "lightweight loose casual shorts with a soft lounge-wear quality", "color": "pale cream, champagne beige or warm grey-beige", "details": "an elastic waistband, slightly wide leg openings and small bow, ruffle or lace details along the sides. The thin fabric bunches naturally in the seated position. Pair with pale ivory thong sandals featuring a small bow detail", "effect": "the shorts create a loose-versus-fitted contrast with the top. Their color is close to the top but not an exact match" } }, "accessories": { "jewelry": "small understated pale stud earrings and a thin silver circular bangle on the wrist", "prop": "a fine metal crossbody chain runs diagonally from the shoulder while most of the bag remains outside the frame; the hands lightly hold a small looped handle or drawstring" }, "photography": { "camera_style": "an authentic casual smartphone portrait, likely made with a phone's main or slightly wide camera, with automatic HDR and restrained beauty processing while retaining environmental clutter, perspective distortion and an unpolished snapshot quality", "angle": "the camera is slightly above the subject's eye level and points gently downward. The device may be tilted a few degrees, so the frame is not perfectly level", "shot_type": "a close vertical seated full-body portrait, with almost the entire figure visible from the top of the head to the feet. The head sits near the upper center while the legs create perspective lines toward the lower frame. Approximate equivalent focal length: 24–28mm, with a shooting distance of roughly 1.3–1.8 meters", "aspect_ratio": "vertical 3:4", "texture": "smartphone-style clarity with mildly sharpened edges, slight skin smoothing, and a small amount of digital noise or compression in the black floor and darker areas. Preserve slight tilt, cropping pressure, wide-angle stretching and background interference rather than producing a flawless commercial image", "lighting": "A large source of cool overcast daylight from the open passage or glass area on the left acts as the key light from the front-left. Warm wall reflections and indoor ambient illumination from the rear-right provide gentle fill. There is no harsh flash or strong rim light, and real soft shadows remain below the face, inside the arms and around the chair. The lens has an f/1.8–f/2.4 smartphone-aperture feel, although computational processing keeps the depth of field fairly deep.", "depth_of_field": "the subject is the clearest element, but the posters, chairs and wall remain recognizable with only mild spatial softening. Avoid creamy professional telephoto bokeh" }, "background": { "setting": "a corner of an urban mall, fashion boutique, styling space or café waiting area, with the subject seated close to a passageway", "wall_color": "glossy deep-brown wall panels behind the subject, with a dusty pink-grey or taupe pillar and partition on the left", "elements": [ "the white curved plastic chair beneath the subject", "a second cream-colored chair partially cropped on the right", "several female outfit photographs and fashion posters attached above the subject", "a grey walkway or exterior-facing passage on the left", "water marks, speckles and irregular reflections on the glossy black tiled floor", "a conspicuous red hand-drawn circular scribble or marker in the upper-left area", "panel edges, a black vertical structural line and minor surface wear" ], "atmosphere": "a damp after-rain or freshly cleaned-floor feeling, where warm interior surfaces meet cooler natural light from the left. The environment feels slightly crowded, incidental and real", "lighting": "the left side is cooler and brighter, the right wall reflections are warmer, and the black floor carries fragmented highlights and watery reflections rather than uniform studio illumination" }, "the_vibe": { "energy": "low-volume, quiet and soft; she is not actively presenting herself, only briefly meeting the camera when it appears", "mood": "a temporary pause indoors after rain, awake and gentle with a trace of fatigue or absent-mindedness", "aesthetic": "urban soft-feminine styling, natural smartphone portraiture and an informal fashion snapshot with the direct, lightly unpolished quality of early social-media photography", "authenticity": "retain the wide-angle leg elongation, slightly elevated camera, environmental clutter, damp floor, cropped chair, mild skin processing and imperfect body asymmetry. Do not upgrade the scene into a polished studio campaign", "intimacy": "the photographer stands fairly close, suggesting the image was taken casually by someone familiar. The distance feels personal without becoming invasive, and the subject's gaze directly connects with the lens", "story": "She had just stepped in from the damp exterior and sat down on the white chair. The photographer called to her, and she looked up for a moment. The floor was still reflecting the light, and she seemed likely to stand again in the next second.", "caption_energy": "“I just sat down. The rain still hasn't stopped. I'll leave in a little while.”" }, "constraints": { "must_keep": [ "a young adult woman with natural facial proportions and mild asymmetry matching the reference", "a dark-brown voluminous short bob with side-parted loose fringe", "direct eye contact, a slight head tilt and a quiet closed-mouth expression", "a fitted gathered warm-white top with loose pale-beige shorts", "a seated position near the front of a white plastic chair, overlapping hands, close knees and legs extending toward the lower frame", "a slightly elevated close viewpoint with a 24–28mm equivalent wide-angle perspective", "cool soft daylight from the left combined with warm environmental reflection from the right", "deep-brown wall panels, fashion posters, white chairs and a damp glossy black floor", "imperfect cropping, slight tilt, water reflections and environmental clutter", "the original amount of visible skin without exposing the abdomen, hips, back or buttocks", "the red circular hand-drawn mark in the upper-left when pursuing a complete scene replica" ], "avoid": [ "do not replace the face with a celebrity or generic influencer face", "do not depict the subject as a minor", "do not exaggerate the bust, hips, waist-to-hip ratio or leg length", "do not increase skin exposure or turn the outfit into lingerie", "do not create porcelain-doll skin, plastic texture or completely poreless surfaces", "do not add heavy makeup, smoky eyes, aggressive contouring or saturated red lipstick", "do not use polished studio lighting, harsh flash or a strong rim light", "do not use telephoto compression or extreme background blur", "do not make the pose and composition perfectly symmetrical or perfectly level", "do not crop away or deform fingers, toes or knees, and do not add extra limbs", "do not horizontally mirror the subject or background" ] }, "negative_prompt": [ "minor", "celebrity face", "generic influencer face", "oversexualized", "exaggerated bust", "extreme tiny waist", "unnaturally long legs", "plastic skin", "wax figure", "heavy makeup", "smoky eyes", "harsh flash", "hard rim light", "studio backdrop", "telephoto compression", "extreme bokeh", "perfect symmetry", "polished commercial composition", "mirrored image", "bad fingers", "extra limbs", "deformed knees", "overexposed skin", "anime style", "3D render" ] }