click to view full imageFrom left to right: the first sketch is Ivan (Dr. Spettrino's son), the second one is a early concept art of Spettrino with a angry face and hunchback (Spettrino is a recurring villain on my YouTube channel) the third sketch shows Spettrino's second concept and increased hunchback, along with an insane smile, the fourth one shows Spettrino when he was younger (he had brown hair)
