An excercise in spriting

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Very nice! I'm always glad to see you post!

Anyway, while the sprites are good, maybe you could give the colors some more contrast? When I say contrast, I mean to not only make the colors slightly darker, but also apply some hue shifting with changing saturation values (i.e. lighter ones get less saturations, while darker ones get more saturation).

Especially on Ariel's skirt, looks rather flat at the moment.