Bakst?

[Екатерина Воронина]

I then had one of his friend and saw a female portrait by Leon Bakst . Presumably the portrait depicts a ballerina Tamara Karsavina. Portrait of a signed and dated 1911 .
In Bakst albums I did not find this portrait.
I liked it very much , but it's hard to believe that it Bakst - too good for him, too lovingly - written romance .
What do you think , could be the author of the Bakst portrait?
Oil on canvas, charcoal and watercolor . 66h49