This article raises a lot of concerns I have with female minifigure representation. Yay @ more females, Boo@ too much narrow manifestation of gender specificity
http://www.huffingtonpost.co.uk/2014/07/16/lego-female-scientists-waistlines_n_5590560.html
It's a play issue as much as it is a representation one, in that 'femaled' hourglass torsos have a more limited use, but it's also about what makes it female. Old cartoons suggest blush cheeks, big eyelashes and a bow in the hair made any character female. Even Chima figures which are anthropomorphised animals have 'hourglass' figures for females, the Collectable Minifig Alien Queen had lipstick to go with her see-through head, and don't even get me started on the 'Lady Robot' and her breast dials...