EDIT:

http://imgur.com/1ymVdMZ

(In case the image isn't showing.)

This is a frame for a character I'd like to animate, not really having any pixel experience (neither just pixel art nor animation).

I was wondering if I could get some criticism on the sprite, particularly the silhouette, use of colours and readability? Is the AA necessary?

Also, does anybody have any tips on keeping animating manageable? I've been using Aseprite on and off, but I find when my colour count/sprite size gets bigger, it becomes a lot harder to manage the flow of an animation.