As for Dynamite's covers, it's really no mystery. Sorry, but demographics are against you. The majority of comics readers (at least, fantasy-adventure type comics) have always been heterosexual males (and perhaps just as importantly, so have the publishers and artists). Historically, you really can't argue it, it's been an accepted industry practice (with some escalation over time). Hey, they had to write it into the Comics Code, but that only slowed things down for a decade or two. Or made them sneaky, like the 'wholesome' Betty & Veronica swimsuit covers. And covers sell comics.
Go back and look at the Golden Age stuff like Fiction House's JUNGLE COMICS. Nominally, Ka'anga (a typical Tarzan knockoff) was the the cover featured series, but every one of those covers featured his busty, bikini-clad mate, Helene, prominently in the foreground. Visually, boobs are it. In mainstream comics, you may be able to get away with nipples on a 'limited variant', but showing vagina would be crossing a line (and really, it's not as visually interesting as boobs). So we're at about the same level as what HBO or Showtime can get away with.
Funny story -- last year, a friend of mine, while we we flipping through comics together, launched into a 5-minute diatribe (unprovoked but absolutely sincere AND hilarious) after seeing one too many full-page ads in DC Comics (they had been running in every DC book for months) for the CW series ARROW featuring a shirtless male actor with rippling abs. "I don't need to have to look at that, every time time I read a DC comic!" ... and he went on, at length, about demographics and so on. He felt like "DC was shoving it in his face" and "Who the hell do they think is reading these comics, anyway?" So, it's not just a matter of being fair and equitable, marketing doesn't work like U.S. laws which protect equal rights, etc.
My advice to you: Just watch the TV series SPARTACUS and be happy.
Last edited by pulphero; 04-12-2014 at 07:18 PM.