Help with my riding? Video :)?

First off you have a beautiful horse :) To help with your bouncing, i would say work on your heels they should be down more. Maybe have a friend tell you whenever they come up so you can build muscle memory. Also while you are cantering keep your leg still. At one point it was going in front of the girth. Again its muscle memory. Work on these things on the flat and then apply them to your jumping :)