Very nice Bumskee. And I'm glad you finally did a horse...even half a horse. I have a few *small* crits for you...take them or leave them as you like.
The chest is huge...but that could be intentional, so... The front legs look short in comparison to the back legs, mostly because the knees are so close to the chest. Also, a horse's chest is normally quite narrow, so the front legs would be closer together. Again, that could be your intention. Otherwise...beautifully rendered! Can't fault you on that at all.
So...I'll see more horses from you right? After all, you should practice...in case another CHOW comes along requiring a horse... hehe, j/k. Stunning job.