Like Allison Finch said I noticed that your horse stays straight through the hole course. You want her to bend with you and around the turns. It will make everything smother and she wont have to keep trying to catch her back end up to her front. It will also help her stay more rounded.
Also in the still picture you posted I am not sure if its just me and how I am looking at the picture but your butt looks like its up a little high, also try to keep your elbows in a bit more. And like you said your hands.
But other wise that was a great run and I thought that you looked great
Your horse is an extension of you.