While working on the Raindrop World I decided to download Sculptris to experiment with character modelling. Since there is two clans within the world, one being more fished based and the other being of a more human origin.
This are some examples of creatures that are of the fish based clan. While modelling these I focused on the grab and inflate tool. These are how I made the characters have fins or tails. This was just an experiment of working in 3d.