The image you’ve provided is a placeholder, not an actual artwork by Willem de Kooning. Therefore, I’m unable to describe the nonexistent artwork shown in the image. However, I can summarize the facts you’ve provided.
The artwork mentioned, “Untitled,” was created by Willem de Kooning between 1948 and 1949. De Kooning was a key figure in the Abstract Expressionism movement. The genre of this artwork is abstract, and it is said to be located at the Art Institute of Chicago in Chicago, IL, USA.
To describe an actual work by de Kooning from this era, one would expect to see a vibrant, energetic composition with an abstract form. His works typically feature a combination of gestural brushstrokes and the sense of movement, often blending figuration and abstraction in a dynamic and expressive manner.