Face/Costume Synthesis in Action Shots

I'm in need of a highly-skilled photo editor who can seamlessly integrate my face or costume into action shots. The end goal is to have a photo that looks completely natural and not obviously manipulated, so I can use it for social media posts.

Ideal Skills and Experience:
- Proficiency in photo editing software (Photoshop, GIMP, etc.)
- Experience in face or costume synthesis
- A keen eye for detail and a strong understanding of realism and naturalness
- Prior work with action shots is a plus
- Able to deliver highly realistic photos.

Please provide a portfolio of similar work.