Uran from Tetsuwan Atom series

[Gors]

It's because you're possibly biting more than you can chew

Your first sprite work being a HD fighting character is quite a task and if I were you, I'd do something simpler, to learn animating by myself and not needing to rely much on anime. After all, as accurate the anime might be, it still won't capture the fighting feeling (because different places mean differ context, and unless she is fighting in the anime, it will seem dubious in the sprites). my two cents, though.