There are some nice things happening in this wallpaper, but the overall execution severely limits the overall potential. For one, I wish the size was bigger. If you haven't by now, designing wallpapers in higher resolutions makes it easier for any user to use it for his or her desktop. Limited dimensions decreases those who can use your wall. And, for the wallpaper, my biggest issues are the diagonal lines over Ed and Al, the swirly title over Ed and the picture over Al in the cloud.
None of those elements make any remote sense. The title, okay, I get it, but it's hardly readable and very misplaced. Most wallpapers are better off without any words at all. Underneath the hazy lines, to the best of my seeing ability, the extraction of the brothers is fine. The lines could have been a mask for a bad extraction, but that doesn't seem to be the case. I would get rid of them, because they ruin the image quality of the foreground. And, finally, that last image in the cloud... I don't get it. That's Al, right? He's already in the wallpaper and doesn't need to be there twice.
If you work on those things, this could be a very nice wallpaper and has a lot of potential. Good luck and keep up the work!
- kuru.