An absolutely incredible
use of shading; not just with the sisters themselves, but also their clothing and accessories-- they're so lifelike and have such a perfectly natural weight to them that a viewer has to look very closely indeed to see that this is an illustration rather than a photo of a sculpture. The hard, unblurred edges and lack of background actually reinforce this visual effect by looking almost exactly like a sculpture photographed in a whitebox, and the draping of the cloth really feels like it was sculpted by hand. The texture of their manes also reinforces the effect in a fascinating way; it doesn't look like hair quite so much as sculpted
hair. Another amazing piece that's sure to fool quite a few people who see a thumbnail of it into thinking it's a well-photographed sculpture.