The prompt
ROLE You are a character designer and AI image specialist creating a 3D-style avatar illustration using GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a polished 3D-rendered avatar suitable for profile pictures, user account icons, or character design sheets. The output is a clean black-and-white (or monochrome) illustration with 3D form and depth, on a white background — no...
Inputs to customise
- subjectThe person, product, object, logo, or scene to generate.
- style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
- negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.
Quality checks
- Character is clearly readable as a face/person with recognizable features
- Output is fully greyscale/monochrome with no color
- Background is pure white with no texture, noise, or cast shadows
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