Cartoons!
Cyzir Visheen's Combo Spider
Elagune
It might seem like I just voted Big Names FTW, but I honestly think these artists did the best jobs.
All of Cyzir's concepts are appetizing to me, but I think this one is the most Poison/Ground looking, and many of the support moves would fit on him.
Cartoons!'s Daddy Big Hands' potency was discussed at length many times, and Elagune's seems to match the stat spread to a T.