Very nice Clave. But two comments. One will piss you off. The other will only make you want to ram hot pokers up my backside.
1) The rivets look a little pronounced (yipes)
2) The Bulgarian has a rocket pod which looks a little small in scale. Weren't they UB-13s with 80mm fin-stablized rockets? I think that with your depiction you have a 20rd pod perhaps? If so that would be a bit larger in diameter I think.
There are 5,000 rivets, but it's not a matter of changing them, which is an easy enough job, but more how the final file is
rendered...
I am using 'screen res' which is 72dpi... but if the image is rendered out at 150 or 300dpi and then resized, the rivets are
much less obvious. The whole thing is an extra step, which I
would take for say, printing, but not strictly needed for viewing on-screen imo...
Sample uploaded - and to me, it's like, blurred.. (top image)
The rocket pack is interesting, and the more I look at photos and other profiles, the more undecided I am about it... I'm going to look again at the original line drawing I used again, it may have some better scale clues on it..