Text is really quite hard to read, I would suggest adding some spacing with letters, just so you can define each letter as some look like they are joined together, the personal Signature avatars is a nice touch, and works quite well, although the signature can be spread out more as at the moment it looks awfully compacted and busy.

and may I ask did you make the logo yourself? Because its a pretty nice design

Not bad, the "a" looks like an "n" however, I suggest taking out the MW3 logo in the sigs, spacing everything out a little more, remove the gamerpictures, and add something else.

It's almost as if you added the MW3 & gamerpictures logos to fill space up, which could be done with something else, like subtext for example.

The shadow effect on the logo in the sigs looks yuck.

i like how you put the gamer pictures with it nice work dude