I'm a little hesitant to try and critique these pictures, because he's sinking into the ground and is on a hill... Take what I say with a grain of salt, I'm not an expert at all and you can get much better critiques from others on this forum, but here it goes.
His pasterns and canons are nice and short, with good angles on his pasterns and nice, straight front legs. His back legs aren't really visible, and added to his feet sinking into the ground I can't say anything. He has a deep girth, a beautifully sloped shoulder, and a nice looking hip, although his croup looks to be pretty steep. His back looks to be long, although I'm not sure, it might just be his high croup. His withers are laid back well, and his neck looks to tie in a bit low. I'm not sure if it's just the really soft ground messing with the way he stands or not, but his feet look a bit funky to me.
Maybe you could stand him on that concrete behind him so he's level, that would definitely give better pictures!
Overall, he's a very, very handsome fellow. I don't see anything bad about him, really. He looks balanced, sturdy, and, to top everything off, his face is adorable!