holy crap, I dig it

it pretty much has the basic elements of a cartoon head texture, but it's drawn instead of done with paths and other vectoring tools. Shading is pretty great and creative.
the whole headband thing sort of get's a little old, i guess, but great job on that anyway
took me a while to notice that the left eye's (the right one, in our view) eyelash thing was visible through the hair.

personally, I'd keep it how it is now and add on any small knick-knack's to give the texture more of a history or background.

sort of wish I had tc

Looks nice, however it looks a bit too rough for cartoon. It's almost like your mixing realism and cartoon and ended up with this. I'd say that your shading needs to be a lot cleaner and less rough around the edges for your cartoon work to be effective. What I mean is try cell shading. and try to use vector more than the traditional brush.