Not too bad. Not sure about the scars (should probably just texture them), but the detailing is getting there. I think the musculature of the arms might need some looking at, however. Seems a tad too lumpy. Face-wise, does remind me of a teenage mutant turtle
If sculptris exports only high polygon models (or at least, that's all that can be used in anim8or), I'm thinking rigging and animating him might be a bit tricky outside of some basic poses among some other issues you might run into that are similar (unwrapping and texturing, adding accessories/clothing, too many polygons in the workspace causing awkward editing, etc).