Hello, I saw this used as part of a wallpaper (which, unfortunately, I can't find anymore). I couldn't find the source, but I got the idea to vector it, which resulted in this. I asked for help finding the source, and a commenter pointed me here. You have now been credited. Thank you so much for making this!
I've got a question I'm not sure how you'll react to, though: somebody pointed out the vector would go great on a t-shirt, and I think he's right. I'd definitely like to get one made, and I'd like to make it available to others whether or not I make a profit, though I don't know of any stores I could submit it to that don't result in profit. Would this be okay with you?