The sky had been cloudy, but there had been no rain for at least 3 days, I guess (should be no ground reflections due to water droplets). There might have been some hay dust particles or something in the air (could see a few particles with my eyes when the flash was triggered). There were definitely some bugs and moths flying around.
None of the pictures have been processed (cropped only).
Orbs?
Here's what moths looked like at about 1 m:
I wonder if these might also be moths: