I'll give it a shot! However, I'm not familiar with Saddlebred/gaited breed conformation, so some of the things I notice might be common (like standing camped-under). :)
What stands out to me (other than his gorgeous coloring...) are his rather upright pasterns, especially in front. I like the length of his cannons and where his hocks are set. I think the shoulder might be a hint upright, and he seems to be built downhill.
His face is so incredibly sweet. I'd love to see him again after some muscling!