As for the lack of detail on the wallpaper - I think it does not actually show Fett himself, because the game offers "bounty hunting" as a profession. In order to make it possible to allow more than one Boba Fett at a time, they probably have introduced a whole bunch of mandalorians you can play as a bounty-hunter. The one of the picture could therefore be a custom bounty-hunter, made by one of the gamers, or am I totally wrong with this guess?