Secret Society of the Palms

The Secret Society of the Palms explores the secret world of moire (interference patterns), that are all around us, you just need to know how to look, and maybe a helping hand.
Three palm trees stand near each other, each an exploration in different light patterns with slow moving fronds creating an optical illusion below, called the moiré effect, or interference patterns. What happens when you spin the bottom fronds? How do the optical illusions change?