The first two pictures of him standing remind me ALOT of a TWH...but the one of him running reminds me very much of a quarter horse. At least his conformation does. The mane looks like it's a tiny bit unusually long for a 100% Quarter horse though... Do you think he might be a cross? Whether or not he's a walking horse would have alot to do with his movement and if he "gaits." Does he bob his head when he walks faster? And does he canter like a non-gaited horse? He is VERRYY gorgeous!!! Do you have anymore pictures of him moving?