I’m still insisting; from left to right: A, M, N, T
The girl on the far left is no doubt Anastasia, She has Anastasia’s nose and expressions.

The girl on the right is definitely Tatiana to me

What can create a confusion here is whether the second girl on the left is Maria or Olga. We know Out of OTMA, Olga and Maria were the sisters who resembled each other the most, but I’m pretty sure it’s Maria here

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Btw I saw many times the girl on the far left being labeled as Olga, which for me it look nothing like Olga, imo Olga doesn’t appear in this photo.