Images created using law enforcement composite sketch software and descriptions of literary characters.

Emma Bovary, Madame Bovary, Gustave Flaubert

She was pale all over, white as a sheet; the skin of her nose was drawn at the nostrils, her eyes looked at you vaguely. After discovering three grey hairs on her temples, she talked much of her old age…Her eyelids seemed chiseled expressly for her long amorous looks in which the pupil disappeared, while a strong inspiration expanded her delicate nostrils and raised the fleshy corner of her lips, shaded in the light by a little black down.

Sam Spade, The Maltese Falcon, Dashiell Hammett

Samuel Spade’s jaw was long and bony, his chin a jutting v under the more flexible v of his mouth. His nostrils curved back to make another, smaller, v. His yellow-grey eyes were horizontal. The V motif was picked up again by thickish brows rising outward from twin creases above a hooked nose, and his pale brown hair grew down—from high flat temples—in a point on his forehead. He looked rather pleasantly like a blond Satan.

Many more here.