I recently stumbled upon this painting by Russian Nicholas Roerich (1874 - 1947). It is entitled Compassion, and was painted in 1936.
It struck me how very similar it is to New Zealand artist Rita Angus's works. This particular one is entitled Mountains Cass, and was painted also in 1936.
Here is Rita. Not at all similar in appearance to Nicholas. I wonder if each knew about the other.