The solid lineart is very cool, but it can be cleaned-up. There are some white spaces that you can clean. And add some shadind in the skin don´t hurts. (Or hurts?) And you used layers? But now, to some cool stuff, eh?
=D The textures is VERY cool, I love textures. And pink hair too. Very cool!

Better =D I see you put shading and erased some white spaces, keep praticind and you´ll be a master in no time!