What was Leonardo da Vinci most important contribution to the western art?

Answer 1

He introduced the idea of scientific observation. (APEX) ^.^

Answer 2

The Last Supper gave a new look to art through the use of perspective. Until da Vinci no perspective hadn't been used in art. The painting draws the eye to the central figure with the people on each side adding balance. There is also a background that gives the view of a sense of looking into the picture.

Answer 3

He introduced the idea of secientic observation.

Answer 4

b. he introduced the idea of scientific observation