Curate, connect, and discover
I really love how you differentiate between the two near identical characters + ensinuate how much of a danger they truly are by making the professor have much more "plush"-looking fur compared to the substitute, whose fur is spiky-er and "electric" (You can even see a shape difference on their coat collars+glasses).
It's just interesting to see shape theory in character design no matter how much I see it!
Heyyy ** draws the professor and substitute **