Answer:
Mosaic
Explanation: The use of tiles as a medium would point to the artwork being called a mosaic. Tessera is another name for the tiles used in a mosaic.
Is this a genuine question or a curious question?
I believe the answer is Monochromatic
A color scheme could be categorized as monochromatic if it's derives only from single based hue using additional tints, tones, and shades.
The usage of these will alter the brightness and the saturation of the color just like what we see in the painting.
