There's also a very neat way to shade as well. A big thing is to never shade with black!! It depends when you do, but if you wanna make your art more alive, I recommend using colors to shade colors. I can set up a simple guide, also, change transparency with all the following shades; Red= purple or a darker purple depending on preference orange= pink yellow= red green= a pure bright blue blue= dark purple purple= a darker pink or blue! I would recommend charging the opacity/ transparency on the color until it looks right! Also, you can shade white with cyan, and brown with purple!!