I personally liked your Matrix ones. You have a pretty cool background going on the left side, but then it kinda fades away on the right... Also the render feels awkward in there. I don't know how to exactly explain it. It just doesn't seem to fit.
You should add some contrast the render seems like it has a thin layer of gray on it, once you do that it will look good. Did you use all defaults?
What do you mean defaults? I r nub w/ gimp. If you mean, if I didn't change anything, I did. I changed the thing on the left, the thing on the right, and did some stuff to the render. Then some other effects and crap.
No no no Defaults are basically everything you get when you get the program at the start, so like no download, like a default brush, its really easy to understand just hard to explain -_-'.... Basically its everything you didn't download...(that was easy)... *EDIT* (HOLY ****ING **** IM NOT WARNED ANY FUCING MORE HOLY ****ING ****ING **** **** **** FUXER ****) Also (so this isn't spam) if you want some tips on using defaults ask Lockdown or Core they both use Gimp and they are good at it.
I have to agree with Hari that you smudged a bit too much. I like the theme, but you tried to incorporate the trooper and you did it a little bit too much.
I didn't think the smudging was even that obvious .. :O But I get what you guys are saying, and I agree. Thanks for your opinion, and constructive criticism.