I'm just beginning to learn pixel art. The style I want to learn is low resolution/color comic book style. I don't want to use any dithering. Technically I can use up to 256 colors but I'm trying to stick to 16 for the moment just to see how much is possible.

I'm interested in how to draw better eyes, mouths and general face shading. I haven't really figured out how to do hair so don't critique that.