He's a little downhill, and his shoulder is a little steep. He looks sickle-hocked, but that could just be the way he decided to stand for the picture. :) His back is just a liiiittle long.
Buuut. I love his hocks, almost darn near even with the knees. Good pasterns, nice legs, pretty neck, gorgeous color.
However, when you lunge him, you can see a little dip where his neck meets his withers. This isn't conformation, this is a CLASSIC sign of a horse pulling himself along with his forehand, and not using his topline correctly (Another sign is the steep angle of his rump). His topline is lacking, he seems strung out and not pushing himself through with his back and rear legs. I call these horses 'disjointed'... he can put his head down and instead of his back raising, it just stays hollow (that's why there's the dip before the withers, the muscle isn't pulling the back up to carry you!). He may have changed now that he's in training, I'm not sure. ^^;
My horse looks like that when he comes out of the pasture after winter... but after driving him up into the bit (and working him with a higher headset, like dressage), he is able to carry himself correctly, and then we go back to 'long and low.' :)
Good luck with him!