Face Replacement Photo Editing

I'm looking for a proficient photo editor with strong skills in face manipulation and photo composition.

Requirements:
- Replace complete faces in photos using a specific reference image I will provide.
- Seamlessly integrate the new face into the picture to maintain a natural look.
- Add a person into existing pictures.

Ideal candidates should have:
- Extensive experience in photo editing and retouching.
- A keen eye for detail.
- Ability to deliver high-quality work within a short turnaround time.