This took me way longer than I wanted.

Check me out here: http://www.redbubble.com/people/m00nstonee/works/16202187-watch-me-whip
I also entered this image in this contest: http://community.welovefine.com/m/contests/detail/Steven-Universe-Design-Contest-2

Amethyst (c) Steven Universe, Rebecca Sugar
Art (c) Me