IDENTITY PRESERVATION INSTRUCTION:
Using the uploaded photo as reference, preserve the person's exact facial features, face shape, eye color, skin tone, and unique characteristics while seamlessly integrating them into a mermaid transformation. The facial identity must remain 100% recognizable and distinct.

TRANSFORMATION DESCRIPTION:
Transform the person into a beautiful, ethereal mermaid. Replace clothing with flowing, iridescent mermaid scales and a shimmering tail that matches the skin tone. Add delicate seashell or pearl accessories. The hair should flow as if underwater, with natural movement. The skin should have a subtle aquatic glow and texture, with scales appearing naturally integrated on shoulders, arms, or tail.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic fantasy portrait with cinematic quality
- Lighting: Soft, underwater caustic lighting with bioluminescent glow from the environment. Dramatic yet natural light rays filtering through water
- Color palette: Cool aquatic tones (teals, aquamarines, deep blues) mixed with warm iridescent highlights (pearl, gold, soft pink). Skin retains natural undertones
- Background: Underwater scene with soft light rays, floating particles, and distant coral or ocean elements. Keep focus on the subject
- Texture: Highly detailed scales with realistic light reflection, wet-looking hair with individual strands visible, smooth skin with subtle aquatic shimmer

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face
- Professional quality
- Aspect ratio: 16:9 (cinematic) or 4:3 (portrait)
- Ultra-detailed scale texture and hair physics
- Natural skin texture preserved with added magical elements

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, unnatural scale attachment, mismatched skin tone, artificial-looking hair, low resolution, watermark, text, signature, extra limbs, mutated features, poor anatomy

USER CUSTOMIZATION:
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TECHNICAL INSTRUCTIONS FOR AI:
- Use the uploaded photo as the primary reference for face identity
- Maintain facial proportions and expressions from the source
- Ensure scales are integrated naturally, not as a separate layer
- Keep eyes bright and expressive
- The transformation should look like a natural evolution of the person into a mermaid, not a mask