When a sculpture is designed to be viewed from one side, and protrudes dynamically from its background plane or is carved with deeply incised marks, this is called?

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.