Use assim, bem estruturado para Nano Banana (Image-to-Image), em inglês:
"Use the uploaded photo as the identity reference and keep the same face, hairstyle and gender. The person in the image must look exactly like the person in the photo, with identical facial features, facial proportions, bone structure, skin tone and hair shape. Do not change their apparent age, face shape or ethnic traits, do not beautify or stylize the face in a way that changes their real identity.
IDENTITY LOCK – 100% FACE, HAIR, GENDER
Preserve 100% of the person’s real appearance from the uploaded photo:
Same head shape, skull geometry, jawline, chin, cheekbones, neck thickness and overall build.
Same eye shape and spacing, eyelids, eyebrows, nose shape, lips shape and volume, and characteristic expression.
Same skin tone and undertones, only translated into paper shading without changing their ethnicity.
Hair: keep the exact same hairstyle, hair length, volume, hairline and color as in the photo, only converted into 3D folded paper geometry.
Gender presentation must stay exactly the same; do not feminize or masculinize the face compared to the original.
No face swap, no mixing with other faces, no age change, no makeup exaggeration that alters the person’s identity.
The viewer must instantly recognize that this is the same person from the original photo, only turned into a 3D paper‑craft bust.
CORE SUBJECT – 3D PAPER-CRAFT BUST
Transform the person from the photo into a 3D paper-craft bust:
Show the head, neck and upper shoulders as a physical paper sculpture placed in a studio setting.
Low-poly, faceted, origami-inspired construction, with clearly visible polygonal planes and folded edges.
The face and hair are built from flat paper facets, but all planes together still reconstruct the same identity and hairstyle from the reference.
STYLE AND MATERIALS – LOW-POLY ORIGAMI PAPER
Style: low-poly origami / papercraft, with crisp triangular and polygonal surfaces.
Material: realistic thick paper or cardstock, with subtle fiber grain, tiny imperfections and visible fold lines.
Edges should look slightly raised where sheets of paper meet and fold, with soft shadows between layers.
No plastic, metal, clay or 3D CGI plastic look; everything must feel like real folded paper.
COLOR PALETTE
Main palette: beige, cream and soft off-white tones for the bust and background, with gentle warm variations.
Hair color should match the person’s real hair tone from the photo, translated into layered paper planes (for blond hair, use light creams, pale yellows and warm beiges).
Use delicate, controlled shading to suggest volume on the paper facets, never heavy gradients or neon colors.
LIGHTING AND MOOD
Soft studio lighting, as if photographed in a controlled photo studio.
Gentle, diffused key light from one side, with soft shadows that emphasize the paper folds and low-poly geometry.
Mood: calm, minimalist, elegant, like a high-end design object or gallery maquette.
COMPOSITION AND BACKGROUND
Bust centered in the frame, straight-on or slight three-quarter angle, with the face clearly visible.
Minimalist background in beige and cream tones, softly blurred or flat, with no distracting elements.
No text, logos, watermarks or UI elements; the focus is entirely on the paper-craft bust.
QUALITY AND DETAIL
High-resolution, ultra-clean render, with sharp edges on the paper geometry and no noise.
Realistic paper textures, subtle shadows between layers, and precise low-poly construction around the eyes, nose, mouth and hair, while fully preserving the person’s identity.
NEGATIVE PROMPT (OPTIONAL)
"photorealistic human skin, realistic photo portrait, plastic toy look, clay, metal, fabric, watercolor, oil painting, anime, cartoon, chibi, low detail, blurry, noise, melted features, wrong face, different person, changed age, changed gender, changed ethnicity, heavy makeup, neon colors, text, watermark, logo, UI elements""