Take a photo of a face and break down to about 30 pixels across, and you’ve got a low-res deconstruction in the manner of Chuck Close.
It seems like a very modern notion until you see how the Romans did the same thing a couple thousand years ago.
The mosaic artists in Tunisia created these faces according to the same kind of reductive thinking. They were mostly itinerant artists, carrying a huge batch of tile colors.
They would cover a whole floor with scenes of mermaids and animals and gods, working pixel by pixel.