Quick Note from the_coach re my stance
Have a look at set up here. One more note on your vids your stance a little narrow would just like to see the right foot moved to the right say three inches or so. The tip about the ‘armpit’ ball line up position a good one. Take no notice of the scary extra wide set-up note she makes. Here she shows you the tilt set up well & note how her upper body stays behind the ball.