As a painter, and 3D artist, I know that picrel is how you can turn anything great.
The question is, how do I know if I "got" it as in learned it? Any resources?
I've taken notes, tried to condense what I learned to try to explain to a 6 year old.
"Core shadow only indicates surface is hard"
"More midtones indicate surface is soft/round"
Stuff like that.
Do I have to say the entire thing or is there a shorter name for it?

what about cell shading?