"Darth Vader" by Danny Haas. This is awesome, for its pop cultural relevance, its clever use of the Empire's logo, and its overall Sheppard Fairey-esque aesthetic. Haas' aesthetic stands on its own though. A sublime piece.
Darth Revan played pivotal roles as both Jedi and Sith in the Mandalorian Wars and the Jedi Civil War. He wore a Mandalorian helmet, which he vowed never to take it off until the threat to the galaxy had ended.