For some reason, unlike just about every other superhero there is, Tony Stark has never really had a female opposite number. An Iron Woman.
So it's totally fair game for artists to step in and try to imagine what one would look like. I almost entirely like this effort, from SgtHK, because it's almost all practicality, and very little token "sexiness". Called Iron Maiden (cute), there's no giant Iron Boobs, she's not sticking her Iron Butt up in the air, that sort of thing.
I'm not really sold on the hair, though. Why wear all that armour if, five seconds into a fight the opponent can just grab your hair? That hurts.