Caricature generation techniques and systems are described that are configured to preserve an individuality identity of a subject of the caricature and thus overcome inaccuracies and failures of conventional techniques. In one example, a caricature generation system is employed by a computing device to determine deviations of facial features of a subject captured by a digital image from reference values. Caricature-specific blend shapes are then employed by the caricature generation system to generate a digital image caricature from a digital image based on these deviations. In one example, blend shapes include interaction rules that define an interplay of distortions that are jointly applied to at least two of the facial features of a subject in the digital image.