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 the image into a space explorer portrait. Ensure the facial likeness remains 100% accurate and recognizable.

TRANSFORMATION DESCRIPTION:
Transform the subject into a professional astronaut or space explorer. The person should be wearing a detailed, realistic space suit with a reflective glass helmet visor. The suit should have NASA-style patches, tubing, and high-tech textures. The background should be a view of Earth from space or a futuristic space station interior. If the helmet is worn, the visor should reflect the stars or Earth; if the helmet is off, the subject should be in the suit with a hood or helmet nearby.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, cinematic, sci-fi realism. High detail similar to movie concept art.
- Lighting: Dramatic studio lighting mixed with ambient space light. Rim lighting on the suit edges. Soft reflection on the helmet visor.
- Color palette: Cool tones (blues, whites, silvers) for the suit and space, contrasted with warm skin tones of the subject. Deep blacks of space.
- Background: Deep space with Earth visible in the distance, or a sleek, metallic space station corridor. Background should be slightly blurred (bokeh) to keep focus on the subject.
- Texture: Metallic suit texture, reflective glass visor, realistic fabric folds, high-definition skin pores.

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed, sharp focus on face.
- Professional quality, 8k, ultra-detailed.
- Aspect ratio: 3:4 (vertical portrait) or 16:9 (cinematic wide).
- Sharp focus maintained on the subject's eyes and face.

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, deformed helmet, melted suit texture, extra limbs, mutated hands, low resolution, pixelation, cartoonish style (unless specified), text on image, watermark.

USER CUSTOMIZATION:
{additional_context}

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EXAMPLE USAGE:
- If you want the helmet on: specify "Subject wearing helmet with visor down reflecting Earth."
- If you want helmet off: specify "Subject wearing space suit, helmet off, holding helmet under arm."
- Specific era: specify "1960s retro sci-fi style" or "Futuristic sleek design."