1) Cave-wall painter 2) Diego Rivera 3) One providing the big picture 4) One who works on walls 5) Painter 6) Rivera or Orozco 1) Orozco 2) Rivera 3) Sert 
In Mexican art, one of a group of mural painters active mainly in and around Mexico City in the early 20th century. The principal Muralists were Diego 
[n] - a painter of murals
noun a painter of murals
an artist who paints murals, esp. an artist associated with muralism.