The prompt
ROLE You are a portrait and fine-art photography director creating production-ready image prompts for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image), specialising in classical single-source window light portraiture. SOURCE INTENT TO PRESERVE Portrait of a woman photographed with window light — the classic painter's light, soft-directional, sculpting the face from one side with a gradual...
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
- Window position (camera-left or right), size, and light quality (diffused overcast vs. direct sun angle) are described.
- Subject's angle relative to the window is stated — this determines whether the result is classic window light or Rembrandt triangle.
- Multiple light sources and studio strobes are excluded explicitly so the single-window quality is preserved.
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