Pigeon breasted and tied in below the knee are the only things that I notice for sure... Otherwise in some pics he looks slightly: downhill, long backed, sickle hocked, and cow hocked. But I can't quite tell if it's only the pics and the way he is standing. He has a very nice booty, I like his shoulder, pretty good chest depth
Overall, I'm in love and will be over shortly to steal him. I LOVE bays with minimal/no white.
I think the ewe neck is from the first pics. He looks like he has quite a bit more muscle on the underside of his neck. Not as noticeable in the last one, but you can't really see his neck well in that one anyways.