Chiaroscuro Portrait with Amber Rim Light

How to use this prompt

This prompt is optimized for the Nano Banana model in an image-to-image workflow. To achieve the best result, start with a reference image of your target character — ideally a front or three-quarter portrait with clear facial structure. Place the reference as the first image input, then paste the entire prompt into the text field. The prompt locks the character's identity, pose (three-quarter turned frame-left, hands clasped under chin), and the specific low-key lighting setup.

For Nano Banana, the structured format with bracketed sections works natively. Do not remove the [IDENTITY & COMPOSITION LOCK] section — it ensures the model respects the reference. Adjust the 'strength' parameter if the output deviates too much from the reference (lower strength for closer likeness, higher for more creative interpretation).

Best use cases

• Editorial portraits for fashion or lifestyle magazines
• Character consistency across a series of images (e.g., for a graphic novel or game concept)
• Moody social media visuals for Instagram or Pinterest
• Cinematic stills with a classic film noir or art-house feel
• Profile images that require a dramatic, high-end aesthetic

Common mistakes

• Using a reference with mismatched lighting. The prompt expects a three-quarter pose with light from upper left. If your reference has flat or frontal lighting, the result may look unnatural.
• Not preserving the pose. The hands-clasped pose is crucial for the composition. If the reference has hands elsewhere, the model may blur or distort them.
• Over-editing skin. The prompt includes ‘visible natural pores’ and ‘accurate anatomical hand structure’. Avoid heavy denoising or smoothing in post-processing.
• Changing the background too much. The background is deliberately a dark, smoky void. Adding bright elements or textures can break the low-key mood.

Variations

• Color shift: Replace amber/golden light with cool blue moonlight for a colder, more melancholic mood.
• Film grain: Remove subtle editorial film grain for a cleaner, commercial look, or increase it for a vintage 1970s aesthetic.
• Background texture: Change the ‘smoky black void’ to ‘dark velvet curtain’ or ‘oil-slicked water’ for subtle environmental context.
• Hair and wardrobe: Modify the turtleneck to a collared shirt or open jacket, or change hair color while keeping the lighting and pose intact.
• Aspect ratio: The prompt uses 4:5 vertical. For 16:9 widescreen, adjust composition to a medium shot, but keep the lighting and identity lock sections unchanged.