Everything about this is excellent except for a couple things. The breasts' loop is a bit stiff (I would've also made them go up and down so that the appropriate follow-through would enhance it). Also, when I notice her hands are simply mirrored, it looks kinda weak. A slight variation in position and timing would help a lot.
I also just noticed the same on her knees, except in their case one of the becomes anatomically incorrect because of it.
The man's mirrored too, but who cares :P