I took the "Milk flat - blue" theme and made the buttons darker to fit everything else. In the screenshots I used the "Ubuntu_HumanAzul" icon set. The wallpaper is from http://artofadambetts.com and here is the direct link: http://www.artofadambetts.com/images/postgraphics/downloads/desktopbgs/beoriginal-1280.png
The GTK is "Clearlooks-Clarity".
NEW - Here, have a splash screen to go with it: