I love the way you jump. Your leg from your knee down does not move. It's dead solid. I want to steal it. You stay back on the approach to the fence instead of hovering up over his shoulders and use your hips absorb the jumping motion. The slow motion shows it so well. It's textbook.
That being said, something about your upper body looks odd. I don't know if you hunch your shoulders or are half looking down, but you just look a little rounded in your shoulder/neck area. I can't put my finger on it.
The only thing's that really stood out to me, It was hard to critique due to how dark the horse is etc, but I think I saw that you had piano hand's so remember thumb's up if they arent. Shoulder's back, your posture look's abit hunched over.
I think that might be it, and just so you know I was only critiquing the flat work :)
The things that stood out to me were the Paino hands also and when jumping it looks like you just stand up in your stirrups a bit? You shouldnt need to come out of the saddle that much esp over smaller jumps =D