This is not from the comics but consider, in her natural habitat she'd be wearing short little cute Roman orgy toga slave girl sort of outfit with sandals that strap up to her pretty little knees, that you used to see walking about in the background during Caligula, Rome or I Claudius and such...
Right?
Take a complete absence of knowledge about the 20th century.... 21st century.
She's blank.
The culture shock, trying to come to terms with mans world, would be like a spade smacking her in the face, to figure out what "normal" is from watching a few hours of MTV or Youtube.
Luthor laughed to say that the weak bumbling boob that is Clark Kent is all that Superman thinks of humanity as a species once upon a time when he briefly got past the secret identity veil.
She's trying to look like what she thinks makes us feel comfortable.
Remember how Doc Brown (1955) dressed up Marty like Roy Rogers before he sent him back to 1885?
