Very stunning horse(:
I think you need to work on your rein contact, you need to influence him more with your hands, and your seat as a whole. Right now your just looking like a passenger, and you do need more weight in your heels as you bounce alot in the saddle. I also noticed in a few jumps that you put your hands on his neck, pulling the reins down, and jamming his neck.
But overall you have a nice soft postion, just a couple things to work on(: