Lovely shadowing underneath! The lighting behind him doesn't really make sense with the rest of the shadowing on his body although it does add a nice touch. Defined muscles, broad shoulders; you can tell the amount of masculinity. The face is a bit too short for the rest of the body. The white snip on his face adds some contrasted color, but should be blended slightly more where in meets the brown. On his hindquarters where you can see the other side of his withers should be shaded slightly too to show that it's farther back. Overall, impressive technique. Keep it up!