This piece of art would fall under the potrait category
Look at how this picture is similar to the one you are asking about.
<span>Rembrandt’s pieces characterized by A. Shocking images and narratives:) tell me if I'm right!</span>
Answer:
Merce Cunningham
In the same period he was strongly influenced by the gay couple Merce Cunningham (a choreographer) and John Cage (a composer). Working together they explored the contemporary art scene, and began developing their ideas on art. In 1958, gallery owner Leo Castelli discovered Johns while visiting Rauschenberg's studio.