Hi, this is my first ever attempt at pixel art and I'd appreciate some constructive criticism since I don't really know what I am doing  . In particular, what way can I improve her hair? (The shading is meant to be from the top left) I used http://www.kawaiihannah.com/pixelart/view/dollbases for the base
https://postimg.org/image/sbsy7gspj/ <-