Photo Touch Up for Natural Look

I am looking for a skilled photo editor to enhance a picture. The photo is currently grainy, blurry and could use some general touch ups. The desired outcome should be a natural and realistic look. The main focus should be on facial features.
- Image sharpening
- Grain reduction
- Color correction
- Focus on facial features
Ideal candidates should have previous experience working on similar projects and be able to provide samples of their work.