Sorry being someone who doesn't follow current DC that closely it wasn't that obvious to me. Except for the collar on the Maguire one it doesn't look like the aesthetic of the NuDCU, as the panel lines in the Perez one kind of does.
DCnU has an aesthetic?
To explain a bit further, PG is Supergirl on Earth 2 and wears a mutant hybrid of her original Power Girl costume that had sex with a Supergirl costume as filtered through '90s Image.
Which still manages to actually be better by far than any of the Power Girl designs we've seen so far.