Ok here it goes...
Your hands are in your lap. You need to shorten your reins and get your hands out. Also because you have your reins in your lap it causes you to have to bend your wrists like you are playing a piano.
Same thing with the hands. But here it looks like your leg got ahead of you. You want your hip and heel to be aligned.
Your jumping about a second ahead of your horse. You just need to wait for your horse to thrust you up. Other than that you have nice equitation.
It looks like you are checking for your diagonal. A good trick for in the ring is to just look down with your eyes so it is not as noticable.
Once again yor hands are in your lap, but your leg position is AMAZING in this pic!!!
Can't see anything wrong from this angle
You are over jumping. It looks like you tried to jump for your horse. Just wait for your horses thrust to push you out of the saddle.
This pic is perfect for what I have been saying about waiting. In this pic you are in the center of the saddle and the horse is folding your body! This is what you need to look like every time!!
Overall you just need to get your hands out of your lap.
I love your horse he/she looks very spunky and energetic/willing.
Good luck and hope to see more pics!!!