Vayu not only practices Ashtanga Yoga, but he also practices Tai Chi, so I'll upload some pictures of him practicing here.
Tonight, Thursday, March 12, he gave me a one-on-one tai chi lesson to help me relax my shoulders. It was very interesting and fun.
Like with yoga, you must be very, very focused on what you are feeling, especially on the energy in your hands and in your body, as you move.
Afterward, I felt like I was floating, and my shoulderblades were very relaxed.