Here are finally some pictures of my new model. At the begining I wanted to sculpt it with open arms, but it ended up with closed arms. As this looks a bit boring, I added a fine structure on most parts of the surface (sadly hardly visible at the photos) and a lot of small skin appendiges, similar to those seen in cuttlefish. It was really a lot of work, and I needed several hours a add all of the about 60 pieces of sculpey. I could imagine that it would look very cool if it was painted.
I choose this comparable unconventional idea not only because it looks more interesting than plain skin, but also because I could well imagine that some of the more ground-dwelling species of nautiloids had actually such skin structures