So I first noticed that it's great that she can join up with you and follow you. Then why are you making her rear by throwing your hands at her? No seriously.. that's a question I would love for you to answer. You seem to be very well balanced on her in the first clip of you jumping her. Your leg slides back over fences though. Really in the first 3 jumping clips pretty solid overall.
Why are you teaching your horse to rear? Everyone is going to ask you. But really, I want to know your reasoning as to why.
After that first rear where you spur your horse on up to camera. Please be nicer on her mouth when you stop. You yank really hard and her head goes straight up to try to get out of the pain.
That "grid". You are going to break your horses leg. She carried your butt through that because you certaintly didn't help her. You sat down way to early over the first one and held her head the whole time. Then your body was so out of balance it was all she could do to get through it safely.
Very cool that she goes in the water. I swim with my horse and it's so much fun.
Your horse looks like she loves you, which is great because she is getting you out of bad situations. One day she's going to hit one of those logs, fall and break her neck and yours. Grids are great to work with, wonderful, but they need to give. Especially when you are learning and the horse is learning. If you want to get the best from your horse, put her into situations where she can thrive, not ones where she has to struggle.
Also, if you want a good critique on your riding, try to get full clips instead of just little tid bits.