AI Image Modification

I need an AI-generated image modified. I want to either:

1. Insert my friend's face onto the AI image.
2. Change hair color to brown and alter eye color (blue, green, or hazel).

Requirements:
- Use provided reference image of friend's face.
- Ability to realistically modify images.

Ideal Skills and Experience:
- Proficiency in image editing software (Photoshop, GIMP, etc.)
- Experience with AI-generated images
- Attention to detail and strong artistic skills

Please provide samples of similar work.