So with storm drain being its major ability, and while the nuclear waste idea could still work with it, I did have a stroke of inspiration that lead into another possible design.
http://imgur.com/4E9DDYk
Just as a reminder, this design isn't replacing my former one, I'm just also putting this out to see which one is preferred more.
Anyways, onto the design itself, while the design is rather chameleon-like in appearance, I actually had a bit of influence from the akaname, a Japanese mythical creature that, as told by the name's translation, lives in filthy environments and uses its long tongue to eat said grime, hence incorporating the poison-type. However, what really made me consider this design was the fact that most of the time, that location would be a dirty bathroom, which incorporates the storm drain ability precisely, and it is why I added the pipe around its upper body as a sort of armor.
Sorry if it was done by hand and not digitally, but with school starting up and the due date for design coming in surprisingly close I think, I just wanted to get this idea out there as soon as possible.
So again, I hope that I can get some advice as to which concept they like better, and what changes could be made to them. (I also hope that I can have both pictures appear under my name in the overview on page 1.)
While I'm at it, I also should (rather lately) respond to Quanyails suggestion, and say that while I was trying to think about how I could mold the head in a little better with the rest of the body, I found it rather hard to do so. First of all, it would usually be in a hunched over pose, making the neck come up behind the head, and either standing it up or fusing the head into the body would make it look rather weird in my opinion. Additionally, the square head was actually intentional, as I was trying to emulate the bulky square head masks seen on most hazmat suits. There is even a light green screen around the front of the head to show this, though it is a bit easier to see on the first design of it. If you'd like to help, you could probably give me some sort of visual reference, even just a line sketch, to show me what your thinking, but that's entirely optional.