Those are three of the six costumes that Party City has for girls in the "Career Costumes" category (the other offerings include a pink boxer in booty shorts and a Katy Perry outfit). These seem less like fun ways to spark little girls' imaginations and more like an ad in Rusty Cargo Van Enthusiast Monthly.
For comparison, let's take a look at the career costumes for little boys. Are we dressing Timmy Jenkins in a cowboy costume with assless chaps or telling him that one of his six career choices is to become the sexual panther that was David Lee Roth in the 1980s? Of course not, because that would be totally insane. No, the boys get at least 17 career costume options, and they all look like this:
The flight suit is the same size as the one Tom Cruise wore in the movie.
In other words, boys get to look like tiny versions of professional adults. Girls have to dress up like tiny stripper versions of professional adults.
Then there's the interesting problem presented by Gamora from Guardians of the Galaxy. The movie was a huge hit, and Gamora is a strong female character, so it's great that little girls finally have a chance to get a costume from the store of a female superhero they've seen on the big screen. Since this is a children's costume we're talking about, surely the designers would have selected something appropriate. After all, Gamora wears a few different outfits in the movie, including a full body-covering red flight suit, so it's not like there aren't options ...
"Not shitty" could have been one.