i dont know if i may share some ideas??
i have watched your video's they look nice to me. Very friendly and sweet. So nothing wrong. What Volker wrote is right.
i completly agree with that.
When i look to you body language you can work a bit on that if you wish to get more out of the at "liberty time".
For example in the first agility movie around 0.34 and 0.49 you ask the horse to go backwards. That's fine to do between some poles to give a horse a reason to go backwards. As you look to you body language it could be more clearer for your horse.
You standing a bit forwards with your uperbody and ask him to go backwards.
When you take a look at the 2e video you aks the horse to come to you and you have a similar body language, leaning forwards with your uperbody. That makes it a bit more difficult for your horse to understand what you wanted. (see 1.49)
So if you make for yourself some choices which bodylanguage fit the best by some obstackle it will go more easy.
For example stand more upright and think forwards when you aks your horse to go backwards.
Then your shoulders and uperbody become more straight and blocked the horse beter so he understand that he have to go backwards
Look at a herd when one horse ask an other horse to leave. Maybe that will help you a bit to make your own bodylanguage more clear to the horse.
But you are doing fine
there are only some tiny isues which maybe not worked out in details yet, but you will manage it.