Ahhh, some nice colors.
I know some of you will scream "TOO SKINNY!!!" when you see this, but I drew it like that on purpose.
I think it looks dumb when people draw those friggin' huge bulging muscular horse bodies, then attach a frail, willowy human female torso on top. It always looks awkward and disproportioned.
So, I either like a strong, strapping female portion with a muscular horse portion, or a willowy horse portion with a willowy human portion.