Stolen Art?

[boringness.livejournal.com]

A forum I frequent has a graphic making contest, and recently one of the participates posted this:

http://img213.imageshack.us/img213/9291/ppttg30nq.jpg

One of the requirements is to give a original source image used for your graphic (in this case, a wallpaper) Now I don't use Adobe Photoshop CS or Adobe Illustrator CS, but I don't think that he could've made this in photoshop. The picture seems highly familar to me (either because I've sat here staring at it, trying to decide if I've seen it before, or because I HAVE seen it before.)

Theres only one place I could've seen it before, and that was here, or pixelgirlpresents.com I already went through pixelgirlpresents and couldn't find it. I tried to do the same here, but with so many posters everyday, its a bit nightmarish.

I apologize because this isn't crafty, but its driving me nuts and I hoped you guys would be able (and willing) to help.

Edit: Thank you everyone for your help, its very much appreciated. I guess I've learned never underestimate the uber skills of doom that Photoshop gives you. While I'd like to reply to everyone individually... I'm lazy and tired and trying to fight a headache. So once again, thanks for the input =)