More work done for my animal drawing course: lions! I'm going to be doing a lot of lions at some point. And tigers. I did two skulls here from different angles to get a better idea of the structure.
The lion head source is from Hotnstock of Deviant Art and the skulls are from the amazingly awesome Bone Clones, where I would spend too much money if I had too much money and too much space. I hate telling myself that I don't actually need a full-size resin horse skeleton. It's hard. Really hard.