Ultra Maniac girl #3.0 (Colored Version)

Give a lot od troubles with the hair.! make hair using the mouse in manga studio is really complicated, but i like apply screentones. I think i need adivce about manga studio, I felt i am not using it in the right way. But i cant find a tutorial about screentonesm but look good for me, still need more practice.

sketch version:
Ultra maniac girl #3.0 sketch