it is hard to tell his real conformation since he looks somewhat different in each photo. please take the time to line him up on flat ground and take photos from each side , very level, and front and rear.
I can say that his shoulder is upright but of a good size. His neck is set on low and his throatlatch is a wee bit thick, or maybe it's his head that is a bit large.
his front knees look good , front pasturns are short and upright.
hip is overly steep and rear legs are a bit posty with short , upright pasterns.
I bet he looks a lot better under saddle and when squared up. give him his best chance at a good confo critique by taking better photos, ok?