This is a simple Wallpaper I did with Photoshop.
The contents are the "Ubuntu"-Logo (It's a Linux-Distribution for the PC) and the name "ubuntu" and a harmonical and simply and clear-looking background with two brighter shapes of blue. The background is a little darker blue but bright as well.
I did it for the resolution of 1440x900 (widescreen).
Linked at [link]