I would highly recommend downloading it, and leaving a little +1 for him/her in your wake. If you do decide to use it as wallpaper, remember that it’s pixel art, so don’t resize or scrunch it in any way. The effect is lost if you smear the resolution.
As side notes, the GTK theme is Rezlooks-clear, the Openbox theme is p0ng’s obMurrina and the icon set is Tango-OldPlainGray. For some reason I’m sticking with the default X11 cursor now, and of course, I’ll pretty much only use Dejavu Sans for a font. I’m unique that way, probably.