Yeah, I agree with Puck. I see a pretty nicely balanced rider. The last video is the best. Yyour horse seems kind of irritable. In the first video, he didn't want to go forward very well, and if I was your instructor there I would be hollering for you to get more push out of him and get him to move with more forward committment.
Your contact might have to be a bit more steady and encouraging for hime to reach down and forward with the bit.
You are a nice pair and just get more engaegment/forward and take up a bit more contact so you can shape the forward.
Those thumb! On top, always.
Oh, at the canter it feels like you are working too hard, kind of scrubbing the saddle and pumping a bit. Again, horse needs to do more work.