This one was actually done before the colored version, it took me around 13 hours to make the base of the image with pen tool on Illustrator. and I was extremely bored during class.

I have PDF files of each of the images with different background colors, but I doubt I'll post them here because it would seem a bit redundant, unless many people ask for a specific color to see closer.

Image ©: Rewy | くろかいとう