B&W imo. But! The render is just a bit of crappy quality, you could work on that a bit. Or it's maybe just my eye but that's how I see it *shrugs*
I like it, B/W is my favorite personally If I were you I would try smudging and just trying to blend him more into the pictures especially on the of the hood and on his shoulders (and ribs) Other than that it looks pretty neat ;]