I just stumbled upon this article I wrote a long time ago. And realized I never kind of shared it, so I was thinking I could share it now - Better late than never right? I hope you enjoy it :) Here's a link to the original article:
https://80.lv/articles/building-a-stylized-game-world-for-vr/
To see more of the actual art & environments check these posts:
https://www.artstation.com/artwork/Vd3mDN
https://www.artstation.com/artwork/BmOrvA