[Petcharat]

Thank You ^_^ now I finally know how to shade :3. But I don't understand one thing '-', what is midtones?

[Andiliion]

midtones are the colors in between (the middle color, usually the base color for shading), so you dont have a straight dark and straight light section. which is kind of what happened on your shading, you can use only 2 colors to shade with, but if you use three the dark, the middle, and the lightest (which is white) it looks a bit more realistic.

[Petcharat]

Ohhhhhhhhhh o.o Thank You so much ^.^!