When making the cards I've made lately of some awesome battle armor cosplays and what not, I've noticed that the photos I've loved best are those not just taken in a con, but at a cool location (or, at the very least, outside in natural lighting!)
These photos are all from an amazing photographer who makes sure to take his photos with an AWESOME background in mind! Scroll through them; you won't be disappointed.
Does the location make the photo? I think so.