he appears slightly cow hocked in the one pic but not in the other (the one from the front you can see his hind looks pretty square) his shoulder angle appears open and nicely sloped, withers nicely set, great hock angle and set, nice neck tie in, clean throatlatch, fairly even from hock to knee, a smidge downhill, short hip and weak loin coupling. As you know, his topline is his biggest flaw but the one that can be improved.
Form to function appears very good. Great jumping form, appears to have a nice bascule and his knees are great. He's not using himself in the second jump photo but could have been a short spot, looks like a hopper. The second one is great though! He's only going to get better with increased topline and hind end development. Hills, cavaletti, long and low trotting will help. I'm also a fan of belly lifts while on the ground. I see a big improvment in my geldings loin area from these ground exercises.