Fuze: Aside from Demon/Void, I'd say Gaia, Magnetite, Pharos, Typhon, Azurite, Plasma, Vulcan, Warrior, Ivory, Aurora, Quicksilver and Platinum make up the palette that you should experiment with to see what combination you prefer.
I would combine a dark force (since it fits the head's theme) with a blue-ish relax (since it fits the heads skin).