Watch this short animation I created for the upcoming tutorial: https://youtu.be/e8hQ8taTQYo
I found this illustration on pinterest and I thought I can do this in Blender. This was my first bigger project with NPR shading (I created this before the Alto's Odyssey recreation).
I can say this shading techique is not as easy as it seems, you have to mess around a lot with the lighting and with the materials to make it look good.
Around the time when I created this, I watched some Erindale tutorials especially one of the Getting started with procedural textures videos, and I'm glad I watched it because otherwise I wouldn't able to create the cartoonish roofing tiles.
So the next tutorial will be about the roofing tiles it's very simple but maybe it's a life saver for someone.