Realistic B&W Couple Sketches

I'm looking for an artist to create realistic black and white sketches of couples at a party. The sketches should have moderate detail.

Requirements:
- Realistic sketching style
- Black and white only
- Moderate detail

Ideal skills and experience:
- Proficiency in realistic sketching
- Experience with black and white artwork
- Ability to capture the essence of couples in a social setting

Please provide a portfolio showcasing similar work.