Nice one, the only nitpicks I got are:
Zaku's eye and gun's foresight should be glowing.....the other Zakus and Gouf looked too 'in line', more straggled might give better sense of depth and realism.......even better if there are enemies.......just my nitpicks lah.....
I can't see the other photo clearly coz it is too small, and the link seems to be broken........
Are you a modeller? I feel you got potential for these kind of photos, for they are among best I had seen so far, but still see rooms for improvement!