Anime bust drawing test

So I decided to mess around in Illustrator and attempt to do a free hand, no reference drawing of a nameless person and honestly...I'm actually pretty happy with it. Considering it's my first ever free hand drawn pic with no references on a digital program, I think it's pretty good. Up till now I've mostly used the shape tools to do most of my pieces, this is the first one were I used them very little. ( The eyes and mouth ) I even did a little shading that I thought came out pretty good to.

I know the shoulders are a little weird but still not to bad. Creative criticism is appreciated. If you have tips to help better my skills I would very much appreciate them.