Great work. But move the bag back in the stance the same way you'd move the tee back. Have her work her hands *behind* her rear hip, not at or in front...you are still teaching her to move to a contact point that is too far out in front. Do that next and see what it gets you. Good stuff, thanks for sharing.
Going off of gif swing. Hips pushing barrel into contact. We want the hips pulling barrel into contact. Hips before hands/arms. Next step is teaching seperation/stretch. Good progress.