I really don't ahve a problem with his pastern angles (not bad to begin with, and probably the remainder a byproduct of his hooves having a ways to go yet) nor with the way he is standing (to me, he is neither built nor posed like a horse that habitually stands badly under himself, I think it's just 'one moment in time' - btw I think that also means his shoulder is not as upright as some here think). JME, and of course it is really hard to be certain from just one photo.
on looking further what are thoughts on the belly(see pic #2)? I can see ribs but isn't the girth of the belly a little large. What does that say?(or again am I showing my inexperience).
If you mean *at* the girth, he is good 'n deep through the heart, which is a Good Thing (especially for galloping type work such as eventing, but it helps a little with any kind of o/f work). I really LIKE how deep he is through the shoulder and girth area. (And the withers tie in fairly far back, they don't just 'die' under where the pommel would go, which is a GREAT help over fences as well as in dressage).
If you mean the fact that his belly is a little bit lower just to the rear of the girth area, enh, it's no big deal whatsoever, he's just out of shape and may have had a bit of a hay or worm belly in the past. It's WELL within the realm of normal variation and would diminish a bit as he fits up anyhow.
Truly, I like him, despite not having the giantest hind half in the world. He sounds affordable. He reminds me of some good useful horses I've known. If he vets (with attention to the odd muscle deficit alongside the croup), I'd sure buy him
Good luck,
Pat