Hair shading practice

I'd like to take a minute to go over a sketch I did a couple of days ago.
I was looking at the tutorials for anime and manga that I found and realized that I needed to work on my hair shading. The thing about shading with a pen is that instead of blending or something like that you just need to place highlights of color.
What I've found in the past is that finding the placement of those highlights is very difficult and takes a lot of time.
This time I think I've got it. The way that I shaded took me a while, but the result makes me feel proud.
I'll probably end up going over the tutorials that I found more thoroughly soon, but I haven't found time over the break. I'd also like to read both books that I found and then move on to new things after investigating techniques.
When looking forward I'd like to be thinking about the differences between chibis, shoujo, bishoujo, and shonen styles and how they effect the anime or manga as a whole. I'd also like to look at gender and racial stereotypes within anime and manga.
Here is the drawing that I did.
More to come soon.