Nano Banana Pro Prompt - Selfie au soleil par un matin d’hiver givré

{ "subject": { "description": "A young adult woman taking a realistic smartphone selfie outdoors on a frosty winter morning, bathed in low warm sunlight, wearing a dark green knit beanie and a thick fluffy gradient scarf, giving a subtle closed-lip smile that feels candid and real.", "age": "young adult (18-25)", "expression": { "eyes": { "look": "directly at the camera", "energy": "soft, gentle, warmed by sunlight", "direction": "center" }, "mouth": { "position": "subtle closed-lip smile, slight upward corners", "energy": "warm, restrained" }, "overall": "quiet warmth, subtle smile, sunlit calm" }, "face": { "preserve_original": true, "makeup": "minimal or no visible makeup, natural skin texture" }, "hair": { "color": "light brown to dark blonde", "style": "straight hair peeking from under the beanie, a few loose strands", "effect": "slightly wind-touched, natural flyaways" }, "body": { "frame": "upper body close-up", "waist": "not visible", "chest": "partially visible under outerwear", "legs": "not visible", "skin": { "visible_areas": [ "face" ], "tone": "fair", "texture": "natural pores and fine detail, no heavy smoothing", "lighting_effect": "clear winter sun creating warm golden highlights on cheek and nose, with cool ambient shadows" } }, "pose": { "position": "standing outdoors", "base": "arm-extended selfie", "overall": "steady gaze, slight head tilt, relaxed posture" }, "clothing": { "top": { "type": "dark green knit beanie + black winter jacket", "color": "deep green and black", "details": "ribbed knit beanie, jacket zipped up with visible zipper", "effect": "cozy, winter-protective, casual" }, "bottom": { "type": "not visible", "color": "not visible", "details": "not visible" } } }, "accessories": { "headwear": "dark green ribbed knit beanie", "jewelry": "none visible", "device": "smartphone front camera selfie", "prop": "thick fluffy gradient scarf wrapped around neck" }, "photography": { "camera_style": "highly realistic social media smartphone selfie, natural imperfections, true-to-life color", "angle": "arm-length selfie, slightly above eye level, natural perspective", "shot_type": "close-up portrait (head and upper torso)", "aspect_ratio": "3:4 vertical", "texture": "crisp phone HDR, subtle noise, realistic skin detail, no beauty filter", "lighting": "strong low winter sunlight with warm rim/highlights, clear blue-sky fill, crisp frosty air", "depth_of_field": "moderate depth of field, background readable but not studio-blurred" }, "background": { "setting": "frosty hillside viewpoint overlooking a small town in a valley", "wall_color": "none", "elements": [ "bare leafless tree branches behind the subject", "frost-covered ground and grass", "distant clustered houses and buildings", "clear bright blue sky" ], "atmosphere": "cold, bright, sunlit winter stillness", "lighting": "clean daylight with warm sun direction and slight distant haze" }, "the_vibe": { "energy": "soft but sunlit", "mood": "quiet winter warmth, gentle optimism", "aesthetic": "real-life outdoor selfie, cozy layers, sunlight doing the storytelling", "authenticity": "candid phone selfie realism, unretouched feeling", "intimacy": "close framing, direct eye contact, a small sincere smile", "story": "a cold morning walk where the sun finally hits your face, and you smile without thinking", "caption_energy": "simple, bright, quietly happy" }, "constraints": { "must_keep": [ "visible warm sunlight on the face (golden highlights)", "subtle closed-lip smile", "dark green knit beanie", "thick fluffy gradient scarf (gray-lilac to light gray)", "black zipped winter jacket", "frosty ground and winter chill feeling", "leafless tree silhouette behind the head", "distant town in a valley", "clear blue sky", "natural skin texture, no heavy retouching", "smartphone selfie authenticity (slight HDR, mild noise)" ], "avoid": [ "big exaggerated grin", "glam makeup", "studio lighting", "beauty filter or plastic skin", "overly cinematic color grading", "extreme bokeh", "invented text or logos" ] }, "negative_prompt": [ "beauty filter", "plastic skin", "overretouched", "studio", "flash", "cinematic teal orange", "overly perfect face", "exaggerated grin", "heavy makeup", "blurry", "oversharpened halos", "fake text", "watermark", "logo", "anime", "cartoon", "oil painting", "extra fi