Major help (in the form of critiscism) needed :3

[SoniChaos]

The last time I was at these forums there was still a Pixeltendo, so it's been a while. Back in the day I considered myself a fairly average (or maybe even above-average) spriter, but I haven't been practicing or touching up my skills at all since then.

Lately I decided to try and revitalize the pixelling spirit by undertaking a small project with some friends, but it seems I'm lacking a lot more than I thought :X

My idea is to try and sprite in JUS (Jump Ultimate Superstars) style, hence the Gaara reference to the right. Would you mind "beating me up" until I can figure out how to make a decent outline and - especially - how to shade in this style?