Optical illusion in water drop. This image was created when I photographed a water drop forming on a sage leaf with my Sigma macro lens. Imagine my surprise when i reviewed my images and found this one giving the illusion on a snakes head emerging from the leaf. The background behind the leaf has created this illusion. It was not planned or designed, but dam it looks effective. (just from a water drop formation. 500px.com/photo/56520916
via Flickr http://flic.kr/p/iQ3LLG
Sudip Das's Blog 