I found this 1600x1200 scan http://www.theanimegallery.com/image/54776 (I think it''s a scan) and turned into a pretty 1920x1200 wallpaper :) (drew in additional graphics, smoothed it out, balanced out the colors/contrast, got rid of the noisy scan texture, etc. ... )

I'm personally using the flipped version of this wallpaper since I like it better like that, but I figured I should upload the version with original orientation to be respectful to original (unknown) artist.

I think you put the wrong post number for the parent post (I'm guessing you forgot/missed a digit)

Very nice work you've done there!
I've tried it in both ways but I prefer this way with my setup.
And now my Background on all 3 screens ^^ (a big horo-fan here)