Face Restoration Needed for Personal Photo

I require assistance with photo editing. The image in question has a cut-off face on the side and I need it to be fixed for personal use.

Details:
- The photo is intended for personal use.
- The repair is needed on the side of the face.
- I have one or two additional photos of the same person that can assist in the editing process.

Skills and Experience:
- Proficiency in photo editing software such as Photoshop or GIMP.
- Prior experience with face restoration and photo retouching.
- Good understanding of visual aesthetics and attention to detail.