The purpose of this design is to give Debian GNU/Linux a clear and valueable look.
I made a design for the outside (boot, login, logout, shutdown) and one for the inside (wallpaper).
The outside design is of a shimmering white. It consists of many tiny hexagons - a structure that looks scientific and organic at the same time. It should look fresh, modern and elegant.
On the inside you have a surface that looks like bruyere wood. The hexagons I used come from the free "Nanosuit" texture by blakegedye (thanks!); they make the background look flexible and warm like leather.
Everything is colored in sepia tones with the exception of a glance of blue behind the Debian Swirl - a symbol of energy and freedom (blue sky). The swirl is inside a silver sphere, which symbolizes perfection.
The goal is to have a design that makes a perfect impression, even in corporate environments.
PS: With the exception of the GDM picture these are real screenshots, no mockups. So you can already use the Grub 2 and the Plymouth theme, if you like them.
Gnome 3.4 Login Window
Wallpaper (blue version)
Background for Grub (text mode)
Ulrich Hansen, 16.04.2012 (firstname.lastname@example.org)