Jean-Michel Basquiat, "Untitled (Fishing)"

Jean-Michel Basquiat, Untitled (Fishing), 1981; Crystal Bridges Museum of American Art.

This is a rare occurrence, a Basquiat associated with a museum, which means there's a reliable photo to compare with the many Basquiat reproductions and fakes circulating online. According to Crystal Bridges, the work is untitled, although many of the copies and even the exhibition photo above, from the Freud Monk Gallery, call it Fishing. Note the various color changes throughout the duller, brownish version below. Since Basquiat is known for his bright, primary hues, a faded, hazier look is often a tip-off that an image purporting to be by the artist isn't totally accurate. The museum also points out some technical aspects of the work:

Untitled is an incredible example of Basquiat's early style that incorporated visible pentimentos. Traditionally, a pentimento is a moment within a painting in which a previous compositional choice or image can be seen through the top paint layer. Basquiat used this idea to his advantage, often painting in a variety of thick and thin layers that purposefully allowed exposure of the layers beneath. This can be seen especially in the face of the crowned figure, with layers of green, gray, pink, black, and red.

Altered version of a painting by Jean-Michel Basquiat.