The pony is very cute and obviously a talented little jumper; however, my knee jerk reaction to the photos are that the little guy is being pushed a little too hard. In the photos of the really high jumps, especially the front view his knees/legs are a very tiny bit away from not making it over and I would hate to see him flip himself or ruin all that talent with a leg injury due to over exertion just because he is being pushed a little too hard. I know that the fun of jumping for some people is to see how high you can go, but this appears to border on being unsafe. Let the little guy show his awesome skills at a height that is comfortable for him to shine in. There's a reason most people "grow" out of ponies in the hunter world; a lot of times it's simply because they want to jump bigger and it's not safe for the little guys to do that.
Please don't think I'm being mean, but that's a talented little guy who could have a lot of jumping years left if he's not leaped into the ground.