I like the overall direction.
Sly Arsenal and While the Bat's Away are both very cool and thematic. For Cat-Like Reflexes though, I'd prefer to see the defense aspect dropped. There are other members of the Bat-Family that have 4 life and 5 defense with no defensive power, and she has both the Bolas and the Caltrops to slow-down her enemies and therefore increase her survivability. Plus, she can bond with Batman and Batgirl (Cassandra) can move on the same OM, giving you two other figures that can run interference for her if you're worried about losing her.
I'd also drop the range and the attack on the Whip by 1 each.
My
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