Yellow and Green Brushstrokes, together with other paintings of the genre, is a strong and satirical statement against the abstract expressionist artwork movement of the early 60s in New York.

The Lichtenstein Foundation stated that Liechtenstein actually created two works entitled Green and Yellow Brushstrokes, the second and lesser known of the two is much smaller and features brushstrokes that are straighter in nature.

When we observe Yellow and Green Brushstrokes, what we see are two brushstrokes that seem to be magnified and which cover the entire canvas, which is huge - 213.4 cm × 457.2 cm. While observing the green and yellow paint that has been applied to the canvas, one cannot help but wonder at the absurdity of it all.

Yellow and Green Brushstrokes is very simplistic in nature, as what we observe on the canvas almost appears to be childlike in nature, with a simple wave of colour on the canvas.

The use of black lines to emphasise the curve of the brushstroke, as well as helping to add definition to the shape and increase the brightness of the image, also gives it an almost false quality. The paint markings appear as if they have been photographed, and then arranged nearly onto the canvas.

What is interesting about Yellow and Green Brushstrokes, is the notion of movement. Although the image is obviously static, we observe the movement of the brush as it moves across the canvas, creating the vibrant wave of colour. The overlapping of shapes and colour, also helps to add a sense of urgency abs fun to the painting.

When we think of a brushstroke, we think of the artistic process, that of creating an image on the canvas. It is not the end product, but part of that artistic process. What Lichtenstein has done with Yellow and Green Brushstrokes, is to turn the subject of artistic creation on its head.