Realistic Portrait Creation

I need a realistic portrait photo created by combining the best facial features from multiple photos of a person. The final image should have a warm, slight smile.

Requirements:
- Combine best facial features from several photos
- Create a realistic portrait photo
- Subject should have a warm, slight smile

Ideal Skills and Experience:
- Proficiency in photo editing and manipulation
- Experience in creating realistic portraits
- Attention to detail and artistic eye for facial features

Please provide samples of similar work.