__________ is characterized by spontaneous execution, large gestural brushstrokes, abstract or abstracted imagery, and intense color fields, all produced on large, monumental canvases.
The movement which produced abstract, intense-colored works generally on large canvases is abstract expressionism. This movement was established after World War II in New York. Some of the most notable abstract expressionists are Jackson Pollock, Mark Rothko, Willem de Kooning and Franz Kline.