He looks like he has amazing potential and like he can clear those jumps no problem! He looks a tad bit bored/lazy though. Not sure if it is just the pictures or how he is on the flat but maybe, as someone has pointed out, some free jumping can help him build up strength and get him a bit more exicted? Then again I do not know his personality so he may actually be a very energetic horse and that it is good he is acting as if he can do this without thinking about it...