The self-portrait of Andy Warhol has lots of emotion coming from his eyes. The thing that is most interesting is his mouth, because it looks like he doesn't have any lips. The background being pure black makes his face stand out even more.
There are many similarities and differences between both portraits. The main similarities are the shaded background. They also have intriguing smiles. The colors on each portrait are very different, while the Andy Warhol portrait has a bright red face, with a solid black background. The Mona Lisa has a blurry background about land, and the face is monochromatic.