Photo Replacement Specialist Needed

I need a high-resolution photo where a person is replaced with a different person. The new person needs to be matched to the existing background.

Requirements:
- Professional photo editing skills
- Experience in high-resolution image manipulation
- Ability to seamlessly match new subjects to existing backgrounds

Ideal Skills:
- Proficiency in Photoshop or similar software
- Attention to detail
- Strong portfolio demonstrating similar work

Please provide samples of previous work and estimate the time required for completion.