Just to emphasize what @ArmWhip is correctly pointing out. Here is a snapshot of her position. This looks pretty good:What catches my eye is the push off leg trailing behind with the foot rotated back toward the rubber indicating excessive hip rotation, this keeps her from getting back to a stacked posture and if you're not stacked you can't utilize front side resistance as a fulcrum.
And those still shots show a clear leap. Still, not bad for a self-taught girl.Just to emphasize what @ArmWhip is correctly pointing out. Here is a snapshot of her position. This looks pretty good:
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The problem is that image is actually a mirror image of her actual drive:
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She needs to fight to keep that back knee pointed towards the catcher as much as possible.
And those still shots show a clear leap.