Nikitin, Boy and Girl

[Владислав]

Help please attribution and appreciate the picture, which shows the boy and a girl in the bottom right corner of the signature Nikitin, appliances canvas canvas size: 54h43, see In the picture there is a sloughing of the paint layer and the traces of folds, we need restoration. Help please also identify the approximate year of painting.
Perhaps this artist Nikitina Anna?