After my chat with Alan Friday, he suggested making them much simpler using the example of Lego men; keeping them simple using texture to change who the character is rather than the geometry. So I sketches out various shapes and starting exploring different ways to draw characters.
I like the use of the light bulb and bullet egg / petal shapes for the bodies as I found these were more practical when drawing on top. I could stick arms on if need to, and also feet. The tear drop was hard as the pointy head made it difficult to draw on hair and accessories. So possible looking at 3 or 2 shapes to use throughout.