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"?
From my cousin, the retired math teacher: