
Largely divided into three themes, Steam Land, Hotel, and Mythology. Each one has some nice design elements.
My favorite is the Medusa figure pictured here. I thought something similar, but with a snake tail instead of legs would be quite nice for the Collectible Minifigures Series 3. A perfect compliment to The Zombie, Witch, and Vampire.
See the rest of def's designs on the Eurobricks forums.
(Via Eurobricks)