Not everything has to be anime, to be honest I think it's very refreshing to see a non-anime related sig here. But by all means do one if you dig anime. As for your current sig, I think you did a good job for a first try, the text-effects and cutouts especially are well done. I think there are some things you could work on though. I get the basic connection with military symbols and AWOL, but I think you need to put a little more thought into the basic theme of your design. For example, the font you used is terribly out of place. I think that the typefaces Stencil and Rubber Stamp may be more along the type of thing that would work better, in other words a military font. The concept for the imagery is interesting, but I think you'd be better off sticking with one military service and using that set of images. For example, if you made your sig look like an army rank patch that said "AWOL095" instead of "Sergeant". That's just an idea though. What I think you should work for is an idea that holds the whole thing together.