I made this Wallpaper in Blender and rendered with Yafray.
I was trying to learn how to create the caustics effect and it came up pretty good. I guess ubuntu and gnome fans will agree... I'll post other resolutions later
The GNOME logo is fro Variety_Brushed GDM Theme (art.gnome.org), which I use on my Ubuntu, beautiful work...
UPDATE: Made some changes to it's looks and corrected the aspect of the logo, I noticed that the angles between the "arms" were wrong. If anyone likes the older version better let me know and i'll put it back up again.