Theme Dev "ArtVandelay440" has recently pushed out some really sick themes, but his latest has to be one of the most unique and inspired themes that I have seen in a long time. His latest theme is mostly a tribute to the famous graphic artist of the 20th century, MC Escher! This theme includes Black, grey, and transparent schemes along with the art of MC Escher. It includes backgrounds in just about all of the system apps like dialer, settings, lockscreen ect, and even adds themeing to apps like the boid twitter client. This theme has been pulled from the market thanks to the MC Escher foundation (probably because of the name). I still wanted to feature the theme because I know that ArtVandelay put in a good amount of work on this theme as you can see from the screenshots above. You can still get this theme if you are lucky just ask Art in the thread below.
More info on this theme (news on rerelease)
Other ArtVandelay440 themes