How hard is it to achieve visuals like this?

Hey,

I am quite the beginner and was wondering how one would achieve visuals similar to this game(attached pics)
game is called way to the woods

can someone pin point me what to research or something to achieve a similar artstyle. Heres what a developmer writes about it: “
lot of the toon style comes from the sharp shadows.
you might also be interested in “unlit” shading. check out the work of David O’Reilly for awesome examples, especially the adventure time episode.
fun fact: WTTW isn’t actually cel shaded! it’s all physically based, it’s just that we have really sharp shadows :slight_smile: i also play with vertex normals when i can. a lot of things in WTTW are actually unlit as well! we dynamically adjust the level of unlit-ness depending on the lighting situation in code. that’s it! have fun and happy painting!”

so i was wondering, how did he achieved that look while being physical based? How can i adjust the unlitness and add sharp shadows?

Thanks