There’s an artist on Deviant Art that has drawings that are very clearly Narnian characters. Included are Reepicheep, Caspian, Lucy, a Minotaur and a Dragon. The dragon is what separates the set from being from Prince Caspian, as well as the title “Narnia 3 Sketches.” The drawings feature very stylized versions of the characters, and I really like the work. You can see it below, and click on it to go the the deviant art page of the artist pnutink.
narnia 3 sketches by ~pnutink