this horse is pretty messed up, sorry to say. there is improvement. true. but the way she moves , to me, says a lot of pain, or shall we say "discomfort".
I am not sure what. sometimes, as in the first videos, it looks like a horse that has parts of her body that hurt more than others, but also looks like a hrose that is having a laminitic episode, and all of her feet hurt. she just looks like she wants to get weight off of them as fast as possible, and put them down as carefully as possible. has she been examined for laminitius?
in other places she appears off in her left fore or right rear, hard to say.
I would like to see her moving without a rider on her. I do not think riding her now is such a good idea.