This was drawn by Hodori. It has never been uploaded publicly and was drawn in May 2010.

I only have a couple of full-body references for my panda character and this is easily one of my favorites. Someone referred to it as "DC Animated blackjack," but I think the artist's style is a lot more nuanced. Hodori's lines are clean without being as harsh and hard angled as that. The economical use of shading and minimal details make this look like a piece of animated panda concept art. :)