Final Submission
Main Design:
Supporting Material
So, I'm not sure if I quite delivered on all the feedback I received for this guy, but I think I ended up making a pretty interesting (albeit odd) 'mon for CAP 3. Due to time constraints I'm really unable to offer much supporting material for the cauldron-mon in the way of art, but I do envision him having a very Rotom-like lore, in the sense that he's this inanimate object that comes to life through the 'magic' of Pokemon, so to speak. I can imagine the 'goo' half of the cauldron-mon emerging from his pot when the bottom reaches a certain temperature--the poison bubbling over and coming to life. In that sense he has this "dormant" and an "active" state.
As for harmonizing with the stat spread, I can easily see this guy being more specially-oriented, in terms of both offense and defense, firing out Sludge Bomb and Fire Blast, the goo and furnace parts of the design easily absorbing water attacks or turning them into steam. As for Dry Skin, I think that Doug addressed it best, and so his comment is all that needs to be said on the matter (and so should apply to every design that ends up being slated, in my opinion).
Thanks for your support of my concept and constructive criticism over the course of this art thread, specifically to: Quanyails, Koops, tea_and_blues, MLaRF, Yilx, Todd, srk1214, Seven Eagles, Yarnus, Kwihll, Quilph, and Mos-Q. So many good designs here--even if mine does not get many votes (let alone makes the slate), I'm sure we'll end up with something really cool!
Previous Iterations (just for fun)
http://i.imgur.com/3VLhp.png - initial sketch
http://i.imgur.com/hWRif.png - initial coloration & design
http://i.imgur.com/CUPiJ.png - 'witch doctor' concept
http://i.imgur.com/SqTj9.png - "cauldron alone" with male/female colorations
http://i.imgur.com/0C3sX.png - first iteration of the goo monster
http://i.imgur.com/mH68P.png - goo monster and new cauldron (with horns)