From source:

Random Design - by S2-Freak

I'm like, reeeaaally not getting any work done right now, so here we have a very random test sketch I did
a couple months ago xd

Was watching a guy on Youtube, forgot his name, and learned a bit from him about layer usage and tiny little tricks for SAI,
so I really hastily put together a random design and practiced that stuff a bit.
This is like the kinda stuff I don't wanna post anywhere since I usually think it's not interesting enough or.. not worth being
posted, so a lot of these pics I just do, have them lying around and just delete them after a while, but I'll just start posting
more of these, cause even though it's not macro or vore content, I still put a lot of work into and had fun with it, no matter
how insignificant of a sketch it might be compared to what I usually do.

Aaaaand that was my motivational speech, I don't know.
Anyway, hope you like it <3