Her name is Lady Seven, and she does look pretty badass in a gas mask, wielding a steampunk gun and jammed into fishnet stockings. These were shot by zero239 and he says "I have always been intrigued by the look of Steampunk culture and its quirkiness[...]" So have we all, buddy.
If you like this, you should click on to see more pics her her battling her villian self. Very cool photography.
go [ here ] to see them in full flickr glory.