Is that her usual setup, e.g. bat starting on the deltoid? Or was that a drill with a specific intent? Looking at her game swings there is some of that I guess..Not that there is anything wrong with it since she lifts it from there, just unique.
Good observations, she’s changed the bat angle to give her a tighter and more direct path to the plane of the ball. She’s been fighting with raising the elbow and dropping the hands.