Cerberus, the terrifying three-headed monster, guards the circle of Hell where gluttons are punished.
Blake drew this design with charcoal as well as pencil and, later, pen and ink. The distant flames of Hell are contrasts of deep red vermilion, a brownish-pink lake pigment that is probably brazilwood, and yellow gamboge. Brazilwood was one of the cheaper and less popular red/pink lake colours. Blake was always careful not to overlay colours or drawing media. This served him in good stead here because, as he undoubtedly knew, charcoal tends to absorb a lot of colour from red lakes.