I agree with sithlord, it is looking much better but the face is off slightly. I also have another point I noticed. If you look at the head of the concept art, it looks like the muscles for the tail start slightly behind the ears, almost the base of the skull, but it doesn't separate from the rest of the body until the base of the neck a bit before the shoulder area. The model you have now looks to me like the tail was just glued on too far down the spine, it doesn't look like it was intended to be there. The concept art shows a much smoother line for the tail originating farther up the spine and following the contours of the body. The neck may also be a bit long in comparison, however that could just be the angle I am seeing the model from. I like what I am seeing so far.