This picture is symbolic for Gertrudes "two face" personality. She looks beautiful and charming to Denmark, and hides the fact that she is trying to protect her image. She is fake. She may be beautiful on the outside, but inside she is ugly.
“Self-observation brings man to the realization of the necessity of self-change. And in observing himself a man notices that self-observation itself brings about certain changes in his inner processes. He begins to understand that self-observation is an instrument of self-change, a means of awakening.” ~~ Gurdjieff ~~