I have no idea.
This drawing was for some mugs I make, and I paid a commission for this artist to make the girl in the big image. Then on top of that girl I did some sprites to participate in a GBJam that I didn't even participate in, because there was no time to finish. Years later I find the files on the computer, update them and color them and make the "mini game" mentioned in the description. As it is not commercial, I posted it here, using the bitmap as the original vector, both for archiving and sharing if someone likes it. I thought it was cute. I had forgotten that I had already posted some old sprites here. I'm glad you mentioned this or the post would be duplicated.
Thank you.