Photoshop People Out of Photos

I have a few photos that require basic editing. Specifically, I need my ex partner removed from group photos. This is a straightforward task, but attention to detail is appreciated. In the waterfall photo the guy on the left with the black bandanna and in the gallery photos same guy with the dark blue shirt. The background isn't as important so if some cropping is needed that's fine
Ideal skills for this project include:
- Proficiency in Adobe Photoshop
- Experience with basic photo editing
- Good attention to detail

I have 1-5 photos that need to be edited.