A wonderful example of how profoundly effective simple techniques, applied with imagination and artistry, can really be. Sophistication lies in perception and the ability to use "telling details" to make the story come alive.
Or, as in this case, to kind of fascinate, turn the stomach and widen the eyes with amazement all at the same time. Run Wrake (apparently the director) is to be praised for creating this weird and wonderful little visual fable.