Realistic Character Art for Book

I'm seeking a talented artist to create realistic illustrations of human characters for my book.

Requirements:
- Realistic art style
- Experience in character design
- Ability to capture emotions and details
- Portfolio showcasing similar work

Ideal Skills and Experience:
- Strong drawing and painting skills
- Background in fine arts or illustration
- Attention to detail
- Creativity in character interpretation

Please provide samples of previous work and an estimated timeline. Looking forward to your bids!