The correct answer is "COLOR"
I believe the correct answer is high relief.
When a sculpture is designed to be viewed from one side, and
protrudes dynamically from its background plane (at least half of their natural
circumference of sculpture must protrude from background plane) or is carved with
deeply incised marks is called high relief. For example, high-relief art was
made with marble by Francesco Grassia in Rome.
Answer:
Optical illusion art just feels alive any way you look at it even though it is not actually alive.I would make a bunch of waves with perfect shading to highlight motion.
