Rainbowshading with Sai

Feel free to ask anything you can't read/understand or want to correct for Paint Tool Sai.
This is a rather quick thing, so you can see how to make colorful shading with hard shading on a single layer.

Hope you like and that it will help you something.
(If not, go to the searchbar, there are thousands of good tutorials. ;> )

crappy thing seen above@Eelea