*raises his hand and coughs* I have been doing grunge for like ever, where have you all been!? LOL.
Anyway, props that some of you like it.
On the wallpaper, its a bit too busy. It's an overuse of brush there. The font on the bottom cuts into the image. And only lines scrape the font, try taking chunks out by using a mask, then using a black grunge brush to take out chunks of the font.
It's alright, but for a wallpaper, it would be too busy. Plus it would distract the user a bit too much. So I'd say it's an experiment/indy art image.
I seriously doubt this effect works for anything other then a sig. It looks the same all over most likely it's one texture and that makes it a bit broing, I cant imagine this as a background I would get dizzy everytime I see it, allthough the effects is nice, it would work better for some smaller indy art splash or a sig imjo