Half-Face in the Mysterious Crescent?

Photo date: January 4, 2016. Photographer: Mark Mahin.

The photo below was taken while photographing nothing but ordinary drops of pure, clean water falling against a dark featureless background.  We some of the inexplicable objects I call orb crescents. If you look closely at the one on the right, you can seem to see a kind of half-face in the crescent, a face with a large mouth, half of a nose, and half of a left eye.

I have 99 other photos showing these inexplicable crescent shapes, all taken while photographing pure, clean water.