I agree with JDI, his back is a little long and his neck tie-in is coarse. He is slightly back at the knee, which might be making his pasterns look a bit weaker than they would look if his knees were straight. He is also a bit straight through the hocks...maybe through the stifle too, but that's hard to tell with the way he's standing.
He's a bit unrefined and he's not perfect, but still a really nice looking guy. Looks stout and, more importantly, really sweet and mellow.