This cartoon illustration depicts a monster's mouth with a wide, toothy grin. The mouth is open, revealing a set of sharp, pointed teeth. The teeth are yellowish-white and appear to be jagged, giving the monster a menacing appearance. The inside of the mouth is a deep purple color, adding to the overall eerie effect. The illustration is set against a black background, which helps to make the colors of the mouth stand out. The style of the illustration is reminiscent of a children's book or a cartoon.