Have i improved?

Okay, I have compiled a whole bunch of shots from the last year and 1/2 or so. Most of the pictures are of the bay pony I leased last year. You may have seen them already so don't feel the need to critique them. The 2nd set of photos will be of the horse that I am currently leasing, going in order of the show year. Please comment on them, preferably the later few.

I really feel that I have improved on the horse. Together, we are more relaxed, he collects and listens. In the beginning, look at his jump - he was nervous and we were running all over the place. The later photos he is barely jumping the jumps, instead cantering them, relaxed, happy AND listening! He was really strong too but now I feel like its a two way road - I ask, he responds, I respond. I have an idea of what I should be doing, but id like to hear from you first.
Pony:

Horse:
I also think he looks more muscled and fat - before he was border line ribby!
So rip us apart

I love the flatwork pics. There's a few where you lower leg looks squinched up, but I think that's because your stirrups are at jumping length which doesn't allow the leg to stretch down that much. Great job of straight line from elbow to bit. Maybe open your shoulders a little and try to relax your upper body a little more. Looks a tad stiff.

Jumping pics look okay. You've lost your lower leg in a few of them as evidenced by your seat being ahead of the pommel over the fences. Lots of trotting half seat should tighten that up quickly enough. Your upper body is a litte more forward than it needs to be. You could be a little more upright without falling behind the motion which would free your horse's shoulders up to jump. A little more release.

Yup, that's what I was thinking. Before I left over the summer I was doing a lot more 1/2 seat work but when I came back I stopped - ill have to get on that. I definitely have a problem of over jumping but I have been getting better. When I was riding the pony I also got into a habit where I would stand straight up in the stirrups - not a pretty sight :)