Picture Enhancement and Unblurring

I think my girls cheating on me the picture I need done is the one the green arrow is pointing too thanks I'm looking for a professional photo editor to enhance a low-resolution personal picture for me. The main focus of the enhancement will be on the faces in the picture.

Requirements:
- Photo editing skills
- Experience with enhancing low-resolution images
- Ability to focus enhancements on specific parts of the image