>>79457
Thanks for the link - that thread is the sort of thing I'm looking for, but unfortunately the image I am looking for is not there.

However, there was an image that had the exact same sort of thing I was looking for, and doing a saucenao on the image in order to go to the artist's pixiv page let me find the exact artwork I was looking for - I was even able to confirm it's the right thing via my browser history which also confirmed that the image I was looking for did come from gurochan (but I can't figure out which thread it came from):
https://www.gurochan.cx/g/src/1547410979567.jpg