try to remove the black outlines within the piece, try to transist with shadows instead or simply the existing colors

you dont have to over-selout and aa everything

the dither is also kind of out of place

i really love the concept of the character

Whoops, totally missed that one there, Thanks for pointing that out! I went ahead and got rid of the thing.

Thanks for the comments guys!

Large flat clusters are very hard to pixel, but you did extremely well. Fantastic piece.

Spotted one stray pixel between his ear and curl.

Looks great!