This is some damn sexy work here. I think it's going to my desktop right now. I love the clean lines and vector work on the right side and the stuff in the center bar and left side is a good contrast. The colors are spot on beautiful. I would probably lose the textual scriblings on the left or expand thier use. They look like an afterthough as is.
Looks nice and clean.. used it for a desktop background untill my laptop screen decided to have all these random black pixels on it.. *sighs*
Nice work, looks good as a background :D