If I may add a suggestion.This is truely awesome! I'm always glad to be the first to give you a like in YT.
These moves are perfectly done! Perhaps some small tweaks.
-The neckbreak move : would be good if the enemy have a slightly different pose before and after the neck is broken.
A more crunchy sound would be good and more fatal...
-Face smash throw was a good addition too. But the landing pose is a bit strange compared to Sophitia's. (2D is just one point of view, so, it have to be "perfect")
For most slams moves. Perhaps it would look better to have one more frame transition to enemy when hitting the ground.
-> For the moment when hitting ground, P2 is Vertical, then immadiately Horizontal. (Perhaps some extra frame bettween them would be good)
I notice you updated head position on shermie spiral. the result is better!
As an air grab, you could try a mid-air backbreaker where while jumping in the air, the PC could grab the opponent, lay them across her shoulders facing up, and both of them go down with the MC landing on her left foot and right knee, performing a backbreaker. This goes for a full second before the opponent flies away from the MC.