Change of rotation of all of them is unnatural. There is no considration of momentum. A body changing diraction while moving should make some adaptations to do so, and forward direction momentum should have some impact. Naturaly bodies are not able to just stop and change the direction that easily.
OK Go, you'll love their use of illusion.
Interesting. It appears to be a sculpture/painting.
All that I see is a ring. Where's the "Googa Mooga"?
I stare at the lower most of the 4 small black dots for 30 seconds to a minute, then stare at one place such as a blank wall or the white area of the computer monitor. The white and black areas of the image reverse, and I can see the image of "Jesus".
IF there ever was a Jeebus to make an image from. (Which is against one of the major "thou shalt nots.)
From my cousin, the retired math teacher: