The prompt
ROLE You are an expert image-generation prompt writer crafting a ready-to-use fashion editorial portrait prompt for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a luxury fashion editorial portrait — glamorous and technically refined — simulating the rendering characteristics of a Leica M10 body with classic rangefinder optics: natural skin tones, moderate contrast, fine grain...
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
- The Leica M10 aesthetic is defined through specific rendering characteristics (microcontrast, natural skin tones, creamy defocus, slight warm grain) rather than just naming the camera.
- Lighting is described as a source and direction (large window from camera-left, single key, minimal fill) preventing the model from defaulting to flat or over-bright beauty lighting.
- Skin-retouching exclusions are explicit, which directly addresses one of the most common AI portrait failures: over-smoothed, plastic-looking skin.
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