I was looking around Wikipedia for something else, and I happened upon a drawing that looked very much like a Shipbucket drawing. Wanted to post a link here to make sure that the author got credit, as no credit is listed. It is the Soviet submarine K-278 Komsomolets. Link:https://en.wikipedia.org/wiki/Soviet_su ... omsomolets
I only know Darth Panda's Komsomolets drawing, and I can say that this one is not the one of DP. I don't think that's an shipbucket drawing at all.