Moving your hands in a more forward position and shortening your reins, lengthening your stirrups so then your leg doesn't have such an acute angle, leaning further back so then you create a head - shoulder - hip - heel line (aka each of those body parts should be one on top of the other), lift your head so you aren't looking down (this helps keep your back straight and in turn allows the horse to move under themselves).
Otherwise your heel position & depth look great, your leg appears to be staying still and not swinging (can't tell that for sure without a vid sorry!), and your elbow angle is great - as well as hand height. If you look in the second picture you are creating a elbow - hand - bit line, with the reins connecting it all together.
Good luck and I hope this helps!
It's nice to be important, but it's more important to be nice.