These are the examples of my current style of work.
I make these backgrounds from scratch; they are never stock photographs.
Website headers and matching featured images can be made for each blog category. I can also provide a featured image template at extra cost.
I still work with fansites and can do photomanips and fan headers but am no longer actively involved in fandom. I take a limited number of fansite clients per year.
For bloggers: I advise against using photomanips or stock photos in your header!