Decided to make an official reference for canine heads in my own style because I have 0% object permanence/visualization skills. I feel like many of the references like this I find online either have fur or are just the bare minimum basic shape models and I have a lot of trouble applying those to my own artwork, so I decided to create my own with just a basic head and the skeleton shapes underneath for easier comprehension of where the details should go. This is mostly for my own personal reference, but hopefully some of you find it helpful as well.