That looks good, you are sitting fine and your hands, even though I agree that they look a bit odd, look soft and helping, not disturbing the horse at all.
You jump well, but the horse needs to learn to count his paces, a few times he took off a bit too early..
The hint is, from what I learnt from my trainer, the kick off point should be the same distance from the jump as the height of the jump is. Eg, if you jump 3 feet, you kick off 3 ft before the jump. With the wider obstacles its slightly different I heard, but its ok :) keep at it and stay safe :)
Its always a pleasure to see riders with helmets, looking where they are going, using the small space they have to their best abilities, sitting well and not confusing or disturbing the horse :)
All the best wishes :)