Thanks Glenn and Mike(TnM) for the comments!
Mike(That look), #2 is my favorite, followed by #3, then #1. I'm not sure what I think is missing in #1, but I feel it does need something. Maybe it just feels to posed for me, somewhat stiff. Or it could be the expression on the model in the back. I also don't like the harsh neck lines in the model in the front.
#2 just does something for me, and I loved it the moment I saw it. I love the hand positions, the expression on the forward models face, and that the model in the back is partially obscured.
#3 I like a lot, but not sure about how her right leg hits up against the edge of the frane. I also don't like the light hitting her right cheek, which I will fix in edit. Otherwise, its my second favorite.