Washington Heights Public Art - Konstantin Bokov III
Here are the other three examples of Konstantin Bokov's art on the Pinehurst Avenue cliff.
The one on the left is a picture of a Christmas tree, of course, and the middle one is another whimsical face. The one on the right appears to be a squirrel or some other kind of animal; I'm not sure.
For more on Konstantin Bokov, go here.