Improve my images quality as some of them are pixelized - total images 7

I'm in need of a skilled photo editor who can help improve the quality of my personal images. I have 7 photos in total, some of which are pixelized. The primary focus is enhancing the overall clarity of these images.

Ideal Skills:
- Proficiency in photo editing software (e.g. Adobe Photoshop, Lightroom)
- Experience with enhancing personal photos
- Understanding of web photo standards