Do you know any picrews with gills?
there's a post on r/picrew that has some links in it! I'm working to record the linked makers on this blog, but for now you can follow the links in there. I'm pretty sure they all work! The commenter seems to be taking the fish ear type things as gills, hopefully that's what you want? I had a poke around on the fantasy/DND side of Picrew but couldn't find many gills of the sort I expected (lines along the neck) :(











