Wallpapers "Surreal Sunset", "Surreal Sunset Blue" and "Surreal Sunset Human"
are by LtTibbles:

http://www.gnome-look.org/content/show.php/Surreal+Sunset+%2BBlue+%2BHuman+Colors?content=85183

Salix icons are inspired from the "Surreal Sunset" work by LtTibbles and are licensed under the GPL (v2 or newer) as the original work.

All other wallpapers are also licensed under GPL v2 or newer.
