Statues in the Zagreb Museum Of Contemporary Art
These Statues are practicing arm extension at the wall. It is a great way to help you feel the proper rotation of arms and position of the shoulders and neck. The practice is meant to help see how the position of the shoulder girdle affects the head and neck.
This is a great practice for downward dog since the shoulder girdle acts as the base of support. Here, the statues decided to practice with their arms a little farther apart than usual. This is ok, as its great to explore different positioning for your body. Take the time to find what works best for you. Asana practice is about exploring and getting to know your body from the inside and out as you find a body mind connection.