Varieties of the Orb Features

Photo date: June 23, 2020. Photographer: Mark Mahin. 

I took the photos below while photographing only ordinary drops of pure, clean water falling in front of a black featureless background.  On this day I got many different shapes appearing inside orbs. For a while there were oval shapes, as shown below:

There was also a long series of photos showing circular shapes inside orbs, as shown below:

There was also a long series of photos showing triangular shapes inside orbs, as shown below:

There were also some photos showing semi-circular features in orbs.