Nice, but the poison suface looks a bit to concave in the screen-shot, and I don't get the littlw whitepoofs floating upward...
It would be very nice if you made a "Stand Work" anamation, where it bupples, a "Spell" anamation, in which it emmits a big wave of poison, just like a naga building death thing exept green, and, as mentioned below, a poison elemental would be awsom.