It can be so hard to judge through the yearling fuglies and, no offense, but he's got a pretty serious case of them right now LOL.
There are several things that he may or may not grow out of but there are 3 that really stand out to me that aren't likely to change much as he grows. 1) He toes out slightly on the front end and appears to be knock-kneed, especially on that right front. 2) He's got a pretty prominent roach back. That shouldn't keep him from being a good riding horse, but saddle fitting will likely be a pain in the butt. 3) He has pretty long, weak pasterns. While some horses do grow into their pasterns if they are a touch on the long side as yearlings, his are really long so even if he grows into them some, they'll still be long.
As for the stuff that he may grow out of; he's massively downhill but that's just a yearling thing LOL. There is something wonky about the angles of his hind end, but that may just be because he's so downhill right now. I wouldn't call it a fault yet.
I like his neck and he's got a really nice shoulder on him. He also looks like such a sweetie and has really flowy gaits. I'll be anxious to see how he grows up and how his training progresses.