First off, good work homaging the Bruce Timm art style while adding your own (more realistic) twists to it. The iconic image of Batman in the back immediately caught my eye; it looks just like the credits image and really seals the BtAS tribute. The only way the background could have gotten better is if the background was red. But I suppose that much red may have blended in too much with Harley and Poison Ivy.
The women turned out great! Very curvy, very detailed, very shiny and the poses and expressions are 100% dead-on! Sorry I don't have much else to say about the ladies but when you've got it, you got it.
Oh excellent, I love your ladies' curves! I've added it to my favorites, and I'm picky about that stuff. ((I'm just weird... my stuff doesn't get much attention, when I get the odd favorite here and there I get all excited, then when I look at the person's favorites, and it looks to be just any picture they've come across, it bums me out. I like my favorites to matter a little ^_^ Yeah, that was a bit of a rant.))