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 applying the geologist transformation. Keep the original facial identity completely recognizable.

TRANSFORMATION DESCRIPTION:
Transform the person into a professional geologist working in the field. Dress them in authentic geologist attire: a durable field jacket or vest with multiple pockets, sturdy hiking boots, and a hard hat or field cap. Place a geological hammer in their hand or hanging from their belt. Add safety goggles pushed up on their forehead or around their neck. Include a magnifying glass in their other hand for examining rocks. The person should look like they are actively conducting field research, with a focused, professional expression appropriate for scientific work.

STYLE AND AESTHETIC PARAMETERS:
- Photorealistic style with documentary photography quality
- Natural outdoor lighting (golden hour or bright daylight) to simulate field conditions
- Rugged, earthy color palette: browns, greens, grays, and stone colors
- Background should show a realistic geological setting: rocky outcrop, canyon wall, quarry, or mountain trail
- Textures should be highly detailed: fabric of the jacket, metal of the hammer, rock surfaces
- Professional adventure photography aesthetic
- Cinematic depth of field with background slightly blurred to emphasize the subject

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face and geological equipment
- Professional quality, suitable for portfolio or professional use
- Aspect ratio: 3:4 vertical portrait or 4:3 horizontal (user preference)
- Natural skin texture preserved with outdoor lighting effects
- Detailed fabric and material textures on clothing and tools

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic clothing attachment, blurry face, loss of likeness, unnatural hand poses, cartoonish appearance, low quality, pixelation, deformed equipment, inconsistent lighting

USER CUSTOMIZATION:
{additional_context}

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TIPS FOR BEST RESULTS:
- Use a well-lit, clear front-facing photo for optimal identity preservation
- The AI will maintain your facial features while changing only the clothing and adding accessories
- For different backgrounds, specify in the {additional_context} section (e.g., "in a desert canyon" or "in a forest" with visible rock formations)
- To adjust the formality, add "casual field researcher" or "professional academic geologist" to the customization section