Shawna Trpcic is a costume designer who has worked on several Joss Whedon TV shows, like Angel, Firefly and Dollhouse. And via Twitter, she's been sharing images of her own redesigns of Wonder Woman she created.
Quick update: I asked Shawna via email about the pictures, and despite what other sites have been reporting, she said that while Joss Whedon "saw them and liked them," she initially did them without any direction from him.
Check out a couple of other designs she did after the jump. And check out some of her other designs at her website.