Super cute markings!! I love his face on the left side, and the marking on his left hind leg is really interesting.
As far as conformation, I like his build. He is a little long in the neck and back, but still proportionally so it's not so bad. Croup is a little high and steep, and he still looks a little down hill but hopefully he will grow out of it. Nice long, sloping shoulder. Pasterns look a bit too long for my liking.
Overall he is built very nice, and once he is older and has some muscle I'm sure he will be stunning.