Hey I was there lol! Well I wasn't showing but I was watching and supporting one of my 4hers. I'll probably be at congress too. I don't think I'm going to show there this year because I can't afford it but I like to watch. Love my buckskins
So from what I can see to improve on would be, your horses head is just a little bit inconsistent. Not bad but I'd like to see him a little bit more collected. I also noticed a lot of tail swishing. Other then that tho I thought he looked very well.
As far as your equitation, I'm guessing your mom was recording, like she said tho watch your free arm in the pleasure. It looked a little tense at times. You also need to bring your legs back a little bit. Although I think they looked better in the 2nd video but I couldn't see very well because it was slightly out of focus. Your upper body looked very good from what I could see. So overall very nice