Just a minor tip/nitpick, I know you did your research on the Date jacket patches based on that other thread (It was awesome that you could actually recognize the patches).
It seems to me, though, that the patches Date actually used were what people in the military uniform business call "subdued" (i.e. black on olive drab or black on brown) instead of the highly colored ones used here. They use subdued instead of colored so that the colors don't stand out and make you more visible.
I thought you got it pretty much right on except for that.