One of 31 Buddhism realms, Maha Brahma Bhumi, for our own project, Bodhicitta Board Game. No explanations I can offer here because I don't really understand anything about this realm. Maybe this will help: https://en.wikipedia.org/wiki/Buddhist_cosmology_of_the_Theravada_school#Arupa-Loka_.28Formless_Realms.29 ^^ Btw, I use Sharpie Fine Point and Sharpie Ultra Fine Point to do lineart on top of my pencil sketch.
Uploaded 02 February 2016