The 61" x 48" cross section of Donald's head is firm proof that Disney's quacking characters don't stand a chance, either. I'm pretty sure there's more to a duck's head than just the tongue, brain and optic nerve, but Nychos probably wanted to keep this as artistic and cartoonish as possible.
This mixed media on canvas painting has already been sold, so everyone except the owner will have to make shift with photographs of it.