Great tutorial thank you. Scapulo-humeral rhythm is something talked about often but not so easily understood. I thought it looked like her right shoulder melted as they went through the movements. I was wondering whether this was because of the touch she was receiving or because of the movement or both!
It is hard to evaluate without seeing your form. Does your scapula feel stuck? Irmagard Bartenieff’s Hand - Scapula relationship concept is the shoulder blade moves in the same direction of the hand. If your scapula is not moving during dynamic movement I would work on creating more mobility of the shoulder blade in all directions on the ribs.