The painting is an example of a political work of art.

Need the reasons to solve 

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.

Isee it as a little of both. they are showing off their clothes and designers to get you to buy it but also to be amazed by the designs and the style. 

This is absolutely true!