How Dare She? Opticians Heads

I was once again contacted by How Dare She? to help with some design work. They had an interesting concept for displaying glasses in Opticians windows.

They asked me to draw sets of Animal / Character heads for the following themes; Autumn, Halloween, Winter and Spring.
The heads had to face forward and have specific distances between eyes and noses so that they could wear actual stock glasses for the Optician.