Experimental face pixel art

[PrettyNier]

I like it, but the shading's really dirty

But I agree, you've really got to get out of these dirty shading habits.

Excuse me, but to be perfectly honest I don't have a clue what you're talking about.

I don't really see how its... 'dirty' exactly, and at PT one of the few examples of the opposite of dirty shading was tbsp/nitty style shading, and that looked more 'dirty' to me then mine does.

Please help I'm confused~

Regardless;

Thanks tyvon, Pik and Zeph for the comments~