I've been working on these critters in 3-D. I generally keep sketches for 3-D things quite rough, as you see; if I draw them too precisely, I start feeling they're done already, and I'm apt to wander off... Also, to precise a drawing can prevent them from talking back as one works on them. Very important to let them make their demands as they develop! The sketches are apt to happen in coffee shops, on scraps or that perennial aid to design, the paper napkin. Then I scan them and enlarge them to the size I aim to make them, and use them to guide the armature. Above are some abyssal fishy-beings.
Below is an entity I've had in mind for years. Somewhere in one of my moving boxes, she even has a head. But, she's going to get a new one. In 19th century England, the 'Peddler Doll' was a popular thing. She was typically a lady with a tray of wares, often sewing notions. She frequently wore a red cape.
Well, I ain't much on sewing, despite majoring in Costume Design (or maybe because of it), so I want to do the 'Peddler to Hieronymus Bosch and Bruegel the Elder.' She comes along with her offering of wee demons and such, and wears a most unusual cape. Not to mention a living hat: