Vid 1: you need to sit on your horse more, you are bobbing up and down, and you horses head is popped up. really sit on him and drive to the base of the fence and let him lift you. also you are sitting on his back in midair.
Vid 2: again the bobbing. move your hands with him more, they should give and not stay in the same place all the time.
you have a good heel and great leg, but you need to stay up more. when I feel myself dropping back I'll grab a little mane or push my hands into her neck so I stay up
pic: see how you are dropping back? its slight, and easily fixed.
otherwise, very very nice keep up the good work!

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