Figured I'd post this here too...
All shadows heavily applied with a damp brush. First and last picture taken in artificial light (white balanced for accuracy), middle two pictures are taken in natural light.

Left to right: Sandy, Posh, Quartzite, Soiree, Brooke (GWP), Amalgam (GWP), Fuse (GWP)

Sandy, Posh, Quartzite, Soiree, Brooke, Amalgam, Fuse