concept of anim is good, you know what you doing wich is definitely an advantage
bout the player, i dont have any suggestion cause i dont see much of the wta tour tbh, so my comment is just for you to try to improved a little bit your animation.
More smooth footwork at the end, right now look like legs slide to the centre.
Racket speed is a liiiitle slow in the backswing but again, idk how radwanska plays...
seems that you can do it greatbtw, keep it up