I'm not really sure why anyone is surprised any longer that many women characters in computer games are scantily clad. The cover art itself is quite similar to the first one's (as seen in previous posts) and resembles the graphical style of the game itself quite much. You either love it or hate it -- I belong in the latter group.
I'm not sure how many people can at the same time boast their preference of Torchlight II over Diablo III ("has lan, is moddable, exists in a freer environment, yadda yadda...") and complain that Diablo III is too "cartoony". I mean, TL is cartoony, Diablo III just somewhat stylized (opposed to ultra-realism).