Vipers was created by manipulating the triangle interface in Apophysis.  I was certainly excited when this mass of nested snakes came into focus as I worked on the image.

 Although I am not a huge snake lover, this fractal is immensely fascinating.  The final image, which is available for purchase on Zazzle, has been brightened a little, and as well all the snakes have red eyes. 

 Nest of Vipers was created in Apophysis.