It certainly is missing something. This is a PUSH ... not a swing.
The swing is not rotate the lower and hope it magically syncs with the upper and brings it along for a similar rotation.
There is no "Pivot the Swing". There is no "lateral side bend". Simple omission of proper core usage.
Not sure why so many people see the core's rotation but simply miss the lateral side bend. Also not sure why so many club coaches preach a swing in which the rear shoulder doesn't become lowered ..... probably the fastest way possible to ruin a hitter. It's one of the bigger issues I see with swings. Sometimes it's general ignorance ... but often it is due to receiving bad coaching. I had two new hitters this weekend that thought their rear shoulder shouldn't become lowered during the swing. Told them I'd follow up and ask them that question at the end of the lesson to see what their answer was then ... fortunately it had changed.
A hitter with bad information ... such as not allowing their rear shoulder to become lowered ... can hinder their ability to become proficient.
I think she is in pretty decent shape up to this point. It looks like she gets some hip coil and pull back and is ready to do some good things.
From there she uncoils her hips, lets the weight travel across her pelvis to the front side, spins open, and pushes her barrel forward.......
Like previously suggested I think she needs to lateral tilt at the end of the first gif I created. The lateral tilt should be done in the rear hip socket, inline with her shoulders, away from the 2nd baseman. So instead of bleeding the coil that she created, the tilt will intensify the stretch, getting her rear hip behind her leg creating a pulling rear leg to power her swing.
I recently had a conversation with someone and tried out a concept today to help with this. Pretend their is a clock face under your DD's rear foot (Clock face would actually be around the femur). 12 o'clock pointing to home plate, 3 o'clock to the catcher, 6 o'clock behind her, 9 o'clock to the pitcher. Her rear hip is sitting on her femur in the center of the clock. After your DD coils and pulls back with her back and scap, she needs to tilt her pelvis into the 3-6 o'clock quadrant of the clock. I made a visual of this today and it hit home with some kids.......