Wow...he looks just like a bay paint mare I had when I was a kid; their body types are identical
We used to call her The Mule because she had those loooong ears and she was level-headed but could be very lazy and stubborn. She took great care of my brothers and I...she kept us from doing some really stupid things
Anyway, from a conformation standpoint, I like his body, could have a touch better neck/shoulder connection (he could have a better shoulder, but its not terrible), cute head (and I love his ears! They make me so nostalgic!).
His legs, I'm not such a big fan of: they look quite short for his body size. Also, he looks pretty straight behind...not quite post legged, but still very straight. He could toe out, but I won't venture to say yes or no just based on these pictures, its easier to see when they are moving. Bone, he's got in spades: very sturdy looking legs.