Kill la Kill skins: Riven & Fiora

Riven

http://static.tumblr.com/381fd40361b5379e67e83a1e5a6054bb/zlw7p2q/NOondie5s/tumblr_static_8j63zlmjhick44k408oso4wc8.png

or

http://vignette3.wikia.nocookie.net/fantendo/images/0/05/Ryuko.png/revision/latest?cb=20131101001623

Fiora

https://s-media-cache-ak0.pinimg.com/736x/ca/5c/63/ca5c63f6f9ec5d9a6942f8571861036b.jpg

or

http://fc08.deviantart.net/fs70/f/2013/299/8/8/satsuki_kiryuin_by_masssssan-d6ryieh.jpg

People say Fiora should get Ryuuko because of the hair, but I think she would fit Satsuki more just based off of attitude and fighting style. And I think Riven would fit. Not to mention Ryuuko can extend her blade, similar to Riven.