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 transforming them into an underwater city resident. Maintain the original likeness and facial structure as the foundation.

TRANSFORMATION DESCRIPTION: Transform the subject into a mystical underwater city dweller. Add subtle aquatic elements: delicate bioluminescent patterns on the skin (soft blue-green glowing accents along cheekbones and temples), slightly elongated ear tips with small pearl-like adornments, hair flowing as if underwater (weightless, with strands moving gently). The skin should have a subtle pearlescent sheen and very fine, realistic scales that catch the light. Eyes should appear slightly larger and more luminous with a gentle glow, maintaining original eye color but adding ethereal brightness. Include delicate coral-inspired accessories on the shoulders and upper chest. The overall effect should be elegant and otherworldly, not monstrous.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic fantasy with cinematic quality, blending real human features with subtle aquatic fantasy elements
- Lighting: Soft underwater caustics, dappled light from above, gentle bioluminescent glow from skin patterns, ethereal blue-green ambient light
- Color palette: Cool oceanic tones (turquoise, deep blue, aquamarine) with warm bioluminescent accents (soft cyan, pale gold), maintaining natural skin undertones
- Background: Underwater environment with ancient ruins, coral structures, or a glimpse of a subaquatic city in soft bokeh; keep focus on the subject
- Texture: Water-slicked skin with realistic moisture, flowing hair with weightless movement, delicate scale texture that integrates naturally

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face, maintaining facial recognition
- Professional quality portrait with cinematic depth
- Aspect ratio: 1:1 or 4:5 (portrait orientation recommended)
- Ultra-detailed skin texture and bioluminescent effects
- Natural integration of fantasy elements

NEGATIVE PROMPT GUIDANCE: Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, cartoonish appearance, excessive scales covering the face, fish-like features, gills, fins, monstrous appearance, harsh edges on fantasy elements, oversaturated colors, plastic-looking skin, unnatural glow, loss of identity

USER CUSTOMIZATION: {additional_context}

NOTE: For best results, use a well-lit, clear photo with visible facial features. The prompt will blend fantasy elements seamlessly while keeping you recognizable.