This wallpaper delivers an idea that makes sense to the viewer and it's nicely executed at the exact same time. The colors are nice to look upon and aren't something that'd hurt your eyes like a lot of wallpapers we see today. The simplicity works greatly with the scan and gradient background, I'm really glad you didn't end up over-doing it, like again, artists tend to do too much. Good job!
You might want to throw a copyright on ;)