You need to put more weight in your heels so your leg doesn't slip back. Y. You may to try practicing an automatic release so you don't have to put your hands so forward.In the video you need to do release a little but more it looks like. I love that you don't over do when you jump and you just go with the horse. Otherwise you just need to work on your leg and heel. And releasing over the jump.
Oh and your horse is amazing. And lucky you in live Australia.
In the pictures your legs seemed to really slip back, but in the video that wasn't the case at all, and my only comment is (as the others said) more of an auto-release. If you don't know what it is google it.
I think your legs just seem to slip back over larger jumps.
I think your position is great, but you need to get out of his mouth. The shank of the bit is horizontal throughout the entire video, which means constant pressure, and at one point of the video, his nose is almost touching his chest for quite a long time. Other than that, I think your jumping technique is amazing
I love in the video how your jumps look so effortless :) I'm rather jealous. The only thing I can pick at is your leg (as others have mentioned) On a few of the jumps it looks like you're putting all your weight behind you on your legs, which can eventually cause you to jump ahead. Otherwise I quite like the way you ride.