This one actually looks pretty good. Not totally sold on the big vine holding up the disk, but maybe in another color...
The figure itself looks rather good. He's not overly muscled (I'd imagine a Chaos Sorcerer wouldn't be, focusing his attentions to magic instead), has a high level of detail, and will look really good on a table top.
The disk looks kinda like something out of 40K though. Big, flat, floating alien. I wish the "arms" on the underside were doing something a little more than just dragging behind.
Overall not bad though.
My armies: Empire, Dwarfs, High Elves, Wood Elves, Dark Elves, Lizardmen, Skaven, Tomb Kings, Ogre Kingdoms, Orcs and Goblins, and Skitarii (40K).
Personally I don't like this disk guy. Mottdon mentions above that the disk looks like something from 40k. I agree with this but would take it a step further and say that none of the mini looks like it fits a fantasy setting. Just my two cents.