If subject matter is what is being depicted in a work of art, what is the subject of non-representational works such as Blue, Orange, Red by Mark Rothko (p. 436) and Autumn Rhythm by Jackson Pollock (page 434 in your text)?

Answer:

The subject matter is represented in a work of art. In addition, Mark Rothko represents a subject of the non-representational works involving Blue, Orange, and Red. Notably, abstract expressionism was an energetic way of painting to improve the connection between colors and the subject matter. For instance, Blue Orange, and Red in paining represents energy that evokes emotions and consciousness. This is depicted on the sun, moon, and the sky that presents the meaning of the colors that has been used. Jackson Pollock represents climate as a subject of autumn that represents a wide range of climate and light. This aspect is made possible through the incorporation of light in a visual rhythm (Alahverdian, 2019).