Bkbkar----overall, I like her swing. Here are a few thought:
* There is a lot of movement in her hands before the swing. This movement against live pitching will cause her to be late and inconsistent. Encourage her to keep her hands as still as possible.
* Her head is angled too much as she swings. I would like to see her head a little more upright to see the ball better and to ensure she can see the ball better. Also, believe it or not, when the head is tilted, it is more difficult to fully rotate the upper body.
* I know many people believe there is no difference in effectiveness between hitters who hold onto the bat throughout the swing and hitters who release the bat. At her age, I would encourgage her to hold onto the bat with both hands for the entire swing. I can prove that the bat speed decreases when hitters release one hand.
Good luck!