@Schnicka
Ok, the signiture I think, is a really nice use of the gradient blur. Epecially since the part that is unblured is the centre of attention. One of the problems i have though is that the text looks like its been blured aswell. Tell me if it hadn't. And if it has, i would've put the text on a new layer, and blured only the background. That way the text would stand out a bit more, because the rest is just a bit plain. And maybe a font that suits the splatter a bit more. Really good for a 3rd attempt though.
The avatar, i think, suffers the same problem. Maybe you should have done a whole new gradient blur on the avatar. And the font shouldn't have been blurred. But, thats just my opinion, and really, im not the best person to get opinion from.