While surfing I found the webpage of the artist behind NASA's and JPL's art for the Mars Program since 1998. The artist, Corby Waste, has also produced art for the New Frontiers and Mars Scout programs. There's also images of spacecraft, (including MRO) that he took himself, and other interesting stuff.
Worth checking out.
http://www.fourth-millennium.net/space-exp...xploration.html