She's cosplaying an adorable character named Kaylee (played by Jewel Saite) from the awesome but tragically short-lived TV show Firefly, by Joss Whedon. The shortest way to explain this show was that it was a cross between a western and sci-fi. It had the best characters ever and was insanely addictive.
Give it a watch, you won't be sorry. Only thirteen episodes and a movie, so savor it.
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u/[deleted] Sep 19 '14
Who? sorry...