Golden horse: Ben is not long in the back. His peak of croup is a bit far back and his hind legs are over angulated. He is actually a bit up hill with an open shoulder that is also a bit steep. His hind feet are almost clubby.. and this seems to be natural for him as it seems he has not seen a farrier for awhile. Part of that is due to hind leg conformation with stifles a bit too high.
Ben will learn to collect more easily than the OP's horse or the horse Lexiie has due to his up hill build.. however he looks a bit feisty and you will need to work hard to taech him to streatch his topling and use his abdominal muscles to grin his hind legs under himself and raise the root of his neck.
He looks a horse that will quickly resort to being over the bit instead of on the bit.. because it will be easier for him. He will need more time with a looser rein in training so he does not take this shortcut which is a habit, once formed, very difficult to over come.
Thanks for all that, certainly things to think about as we start to really work him