Looks far too flat on the fabric, far too seamless where the belts meet the body and the fabric. When doing straight lines like sabers I highly recommend using a straight line tool (ruler). It looks like a very flat two dimensional image.
Now I've never seen Star Wars, like 5 of the movies I have not seen, so maybe it's just meant to look like that in some aspects, but hey...
Hell, let me show you what I mean.
While it's a blatant tracing I've added what I felt were some improvements on your design.