senior grad pics editing

I have 7 senior grad photos (all of same person) that need editing, and 1 pic that I would like to turn into a composite. If you can't do composite, I can try and tackle that on my own. A few of the pics may need some sharpening. I have both nef and jpg files of the pics. I am really looking for someone who has experience in senior grad pics or photo editing in general. I need the pics to POP! I've attached 3 of the pics so you can see what I have.