Well, there's a whole lot to like about this horse's conformation. a lot.
His back is just right in length. His couplling looks short and strong. his hip size and angle is good. canons both front and rear are short. Front legs are very clean and straight. hock angles are good. Pasterns of good length.
the only thing I see that's a minor, minor fault is that his neck ties in a bit low on his shoulder. AND, I can see some overdevelopment of the underneck muscles. This comes from a horse throwing its' head up and bracing against something; either a tie down, or a hard hand on a harsh bit. This bracing action builds up that muscle that runs along the underside of the neck. that can be reversed with correct riding.
the photo of the horse's faced shows what looks to me like a rather tense horse. It looks like he is holding tension in his facial muscles and jaw. the bit looks ok, but the throat latch is tighter than needs to be. you need to loosen it a couple of holes.
He is a very nicely built horse that can do most anything you and he want to do.
you are very lucky.