Combine Photos with Custom Background

I'm looking for a skilled photo editor to merge subjects from different photos into one cohesive image for professional use.

Requirements:
- Combine multiple subjects (people) from different photos
- Place them on a single, cohesive background
- Ensure lighting and shadows match for realism

Ideal Skills:
- Proficient in Photoshop or similar software
- Experience with photo manipulation and blending
- Attention to detail and creativity

Please provide samples of similar work.