1. FineryThemes
FineryThemes is an implementation of fibermarupoks mockup (http://fibermarupok.deviantart.com/art/Ubuntu-Light-Re-Imagined-156152617).
4. WoW
Wow theme comes with 4 GTK themes: normal, dark, elementary and dark elementary, an emeral theme but also Xfwm and Openbox themes.
6. Perfection (Prfktion)
Requires the latest Murrine and Aurora engines.