Digital sketch in photoshop

I haven't done this kind of sketches in a long time. Forgot how much fun this are. I stumbled upon this ref image and i thought to myself that this is a perfect picture to draw in this style.

I am liking this style more and more except for the hair of course. The hair is a mess. It takes too much time and still can't make it look good.

Enjoy and look at the process below.

Reference image for this drawing.