I discovered another dance photographer: Emil Otto Hoppe. He was born in Germany but was living in Paris for a long time, and he was closely affiliated to the Ballet Russe, a most interesting dance company in France that collaborated with a lot of contemporary artists.
This is one of my favorite photographs: E. O. Hoppe, Anton Dolin, 1923
I love the pose, the muscularity of his legs, and the format of the photograph. Its narrowness gives more emphasis to the tallness of the figure that is being shown, and the background with the two border lines between floor and skirting board and wall in slightly different colors reminds me a little bit of an abstract expressionist painting. Also because of the structure of the wall (paper, I assume).