Orb Crescent "Half Faces"

The photos below were all taken while photographing ordinary drops of pure, clean water falling against a dark featureless background.  While taking such photos I very often get photos that seem to show orb faces, as in this video and the example below from October 25, 2015.

While taking such photos, I also often get photos of what I call orb crescents, as shown here and in the photo below from October 3, 2015.

The photo below from October 30, 2015 seems to combine these two things. We see some crescent-shaped orbs that seem to have half faces.

The photo above resembles this photo, which shows the same type of crescent half faces.