Free to use orb. I made it to have a quick way to shade round things when I'm doing "rush" drawings. I start with this, rotate it as necessary, alter its hue, and then add any colored light on it after that. It's not too bad if you don't mind layers!
Free to use. I don't need credit. Don't re-post it as-is, though, and claim you made it.
Link
Unownace
For some reason this reminds me of a Pink Floyd music video.
https://www.youtube.com/watch?v=fn1R-5p_j5c