A quick guide about shading

[Silverthorn]

Lately, I have seen people that have been struggling with shading; that applied highlights and shadows in a way that showed that they don't fully understand why some parts are brighter and some not. Instead, it rather looked like they memorized areas that should be darker/brighter instead of thinking about if it makes sense whatsoever. That's why I felt compelled to write up a short tutorial about exactly this issue.

I kept it fairly generic and simple, so it can be applied in pretty much any (graphic) situation

Spoiler (Click to View)

Comments? Questions? Bring them on!