Are these supposed to be RPG sprites? That's my guess because of the style on them. In which case I'm also going to guess that you want a top-down perspective. That's what the head is telling me, at least. The rest of the body is very straight-on. You seem to try to work with the perspective by making things thinner as it goes down, but more accurately they'd get shorter faster than they'd get thinner. The whole body and legs seem very tall and long to me.
I think you went a bit overboard with the dithering in the hair on the bottom one. I'm not too muh of a fan of dithering to begin with but that just looks way too busy and detracts from the overall sprite.