Ones of 31 Buddhism realms, Brahma Paritabha Bhumi, Brahma Apamanabha Bhumi and Brahma Abhassara 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 ^^ The point is brahmas in different realms also has different light on their own. Btw, I use Sharpie Fine Point and Sharpie Ultra Fine Point to do lineart on top of my pencil sketch and then tweak them over on variations for each other realm.
Uploaded 14 February 2016