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 a medieval alchemist character.

TRANSFORMATION DESCRIPTION: Transform the subject into a medieval alchemist in a dimly lit stone laboratory. The person should wear authentic medieval alchemist attire including a worn leather apron over a linen tunic, a dark hooded cloak with intricate embroidery, and leather gloves. Add alchemical accessories: a leather satchel with glass vials, a leather-bound grimoire with gold lettering, brass astrolabe, and mystical symbols. The character should have a focused, intense expression as they examine a glowing golden elixir in a glass flask or search for the Philosopher's Stone. Their hands should be positioned as if handling delicate laboratory equipment or ancient manuscripts.

STYLE AND AESTHETIC PARAMETERS:
- Photorealistic fantasy portrait style with cinematic quality
- Medieval Renaissance aesthetic with authentic period details
- Warm, dramatic lighting from candle flames and magical glow of elixirs
- Rich color palette: deep burgundies, forest greens, aged leather browns, golden highlights
- Atmospheric background: stone-walled laboratory with wooden shelves filled with glass alembics, dried herbs, ancient books, and alchemical symbols
- Subtle magical atmosphere with soft golden light emanating from potions
- High attention to texture: weathered leather, aged paper, glass reflections, fabric weaves

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face and hands
- Professional quality cinematic portrait
- Aspect ratio: 16:9 (cinematic) or 4:3 (classic portrait)
- Natural skin texture preserved with realistic pores and lighting
- Professional depth of field with subject in sharp focus
- Ultra-detailed fabric textures and material rendering

NEGATIVE PROMPT GUIDANCE: Avoid: distorted features, unrealistic proportions, blurry face, loss of likeness, modern clothing elements, plastic-looking accessories, cartoonish style, oversaturated colors, flat lighting, anatomical errors, unnatural hand positions

USER CUSTOMIZATION: {additional_context}

ADDITIONAL TECHNICAL NOTES: This prompt works best with portrait or upper-body photos. For optimal results, use photos with clear facial visibility and good lighting. The transformation maintains facial identity while completely changing the character's appearance, clothing, and environment to fit the medieval alchemist theme.