All in all you are a capable and able rider. I see a few minor issues that may help "tweak" your position a bit.
I see a bit of a clench with the knee. This has stiffened your leg keeping the knee from softening over the jump. You leg is a bit too straight putting your upper body a bit too far forward. If you bent your knee more, it would allow your seat to come back a little more putting you in better balance with the horse.
Because your upper body is so far forward, it made you go over your hands too much. That made the reins longish and you have had to absorb the rein by putting your elbows out.
While some may get the impression that you are allowing the horse to pull you over the jump with his mouth, I don't see it that way. Close examination doesn't show that strong a contact. It would, however, be easy for that to happen with the hands "high and hovering".
We all jump this way from time to time. A different angle of ME doing the same thing may show an exaggerated version of what you are doing. Similar leg/seat/hand. Hey, we can't look pretty ALL of the time ;)
Much better! See how your knee flexed more here and allowed your seat back over the center of the horse more? It could have been even a bit closer to the saddle, IMO. Again, reins long, hands in your chest with elbows out. I would offer more release and put hands on either side
of the crest, not on the top. If your knuckles are pressed into the top of the crest, you will be unable to give the reins if the horse needed it. Lower leg better (because upper body is better) but it has slipped back a bit.
This photo really shows the grasping with the knee. As a result, the lower leg is completely off the horse. This could be a very unstable position, if anything were to happen on landing. Your leg needs to wrap more on the horse. Again, because the hands are high it is giving the impression of you being pulled over the jump using the reins for your balance. I would move your hand a bit forward and down lightening the contact.
I really like how you are looking up and forward. Your horse looks like he has a nice strong drive to the jumps. Good job!!