If you've used any of the Windows 7 RC's, then you'll recognize the image immediately as an edit of the default background. Alright, so fancy as the original is, it's too bright for my eyes as a background, and of the images packed with the OS, it's the only one I liked.
Rather than look around for a replacement image, or an idea to create one with, I opted to abuse filters, layer modes, and quick masks with it because I honestly do like it, but needed a darker image. Little projects like these are great excuses to mess around with tools you want more practice with. At the most basic it's an inverted color scheme with a quickmask to pluck some of the fish's highlights since the fish looked downright ugly when completely inverted.
I can't credit the original image's author because I have no idea who it was.
