I've never been a fan of making smokey/burny/steamy effects with greenstuff (or much else) and I think the flesh tones are just a bit too healthy for something that should be sick sick SICK....other than that, I love the base, that's a pretty sweet idea. Maybe a bit more ethereal would be better for the idea, sorta like the Rackham Corypheus (I don't think that's spelled correctly). Good paintwork and conversion work, nonetheless. I've said it before, and I'll say it again, it's good to be seeing lots more painting from you Scibor!