Help identify /suggest the authors

[Elrick]

Good day

need your help colleagues.
The first picture: a woman's head, appliances - ink pen, paper, about the size of 100x60, signatures are not present anywhere, help identify the author. There was something very familiar in my head is spinning, but I can not figure out.

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Oil on canvas normal size is approximately the same as in the first case (60 meters), no signatures. We only know that it was purchased in the mid 80s.

Thanks for the help in advance!