Nano Banana Pro 提示词 - 涂鸦风矢量角色肖像模板

Transform the subject in the reference image into a stylized "Doodle-style" 2D vector illustration. The output must translate the person's likeness and "vibe" into a clean, minimalist character portrait. SUBJECT/CHARACTER DEFINITIONS CRITICAL: Facial features and likeness must STRICTLY match the provided reference image, simplified into the "Doodle" aesthetic. Adaptation: Convert the subject's hairstyle, facial hair, or unique accessories into bold, rounded, and simplified 2D shapes. Facial Details: Minimalist black dot eyes and a simple, expressive mouth. Maintain the specific head tilt and ear structure from the reference. Attire: Oversized, puffy streetwear (hoodies/puffers) with clean, thick black outlines. Note: No halo or head accessories unless present in the original reference. SCENE & LAYOUT Composition: Centered, bust-up portrait. Background: A smooth, two-tone linear gradient. CRITICAL: The color palette of the gradient must be inferred from the subject's perceived personality (e.g., warm oranges/pinks for energetic/friendly, cool blues/teals for calm/stoic, neon greens/purples for edgy/artistic). TECHNICAL SPECS Style: Flat 2D Vector Illustration, "Doodle" NFT aesthetic, bold monoline art. Linework: Thick, consistent black outlines with no tapering. Color: Vibrant, flat fills on the character; soft, professional gradient for the background. Atmosphere: Clean, modern, and personality-driven pop art. NEGATIVE PROMPT No halo, no wings, no 3D rendering, no realistic textures, no complex shading, no photographic elements, no messy or sketchy lines.