I like the shading incorporated into the fur in the 2K15 picture, and the snarling of his mouth is very well done. He looks menacing but not evil, almost as if he's defending his turf from approaching invaders.
The 2K11 was a good start, and the 2K14 pic is a big improvement on that. But with the 2K15 picture you have captured a life likeness that the first two didn't fully have, as you feel like you wouldn't want to run into this guy now-a-days.
Great work and +1, looking forward to seeing this guy in 2K16 as well!
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