I thik Maria Georgievna resembled a lot her brother George, and it´s curious, but our Queen Sophia of Greece (Queen of Spain), resembled them very much.
About her, i belive that she and Xenia Alexandrovna were very close in childwood, and later they married brothers, had she the support of Xenia in Russia?
An other question, as only sister of Alexandra of Greece, and living in Russia , did she have a close relationship with her nepheus,motherless child, Maria Paulovna and Dimitri?