The Keys

In my opinion, these are the 4 most important keys to creating these models: 1) make sure there aren’t too many straight lines. For example: Give a very small degree of inclination to a vertical wall. That will help to make a more beautiful and less mathematical final result. 2) Take care of the thickness of each element. Make everything a little thicker than it really is. That will give it a cartoonish appearance. 3) It’s important to leave space between objets. That way the contrast between light and environmental occlusion can be better appreciated 4) Lighting and rendering: good lighting and a good render is almost as important or even more than modeling. Also, it is recommendable to use a soft and warm light.