Full Body Replacement in Image

I need a skilled image editor to replace a person's full body in a picture. The final image is for personal use.

Just 1 Photo:

Requirements:
- Full body replacement of one person in a photo
- Use of a provided, but low-quality, photo for the replacement
- background modification

Ideal Skills and Experience:
- Experience with advanced photo editing and image manipulation
- Ability to work with and enhance low-quality images
- Attention to detail to ensure a realistic and seamless integration

Please share examples of previous similar work.