Sculpture  is three-dimensional artwork created by shaping hard or plastic material, commonly stone (either rock or marble), metal, or wood. Some sculptures are created directly by carving; others are assembled, built up and fired, welded, molded, or cast.

Bas-Relief  is a method of sculpting which entails carving or etching away the surface of a flat piece of stone or metal creating a sculpture portrayed as a picture.
information from wikipedia

Public Art & Design for this Medium

Untitled (Williams)