Witchblade Movie Poster

A teaser poster of Witchblade, the upcoming movie adaptation of the comic book of the same name, is available:
(Click on the poster to enlarge it.)
But that's just a teaser poster: the lead actress (actresses?) of Witchblade has not been chosen yet... Who would fit the job according to you? Megan Fox? Rhona Mitra? Natalie Martinez? Or who else?
:)