This mural was created in Oct. 2017 by the foundation "Rak 'n' Roll", an organization helping pregnant mothers who are also fighting cancer (rak is in Polish for cancer).
It's already helped over 100 women who beat their cancers and are raising their children.
The mural's full title is "Boskie Matki sa wsrod nas" (Divine Mothers are among us).
Author - Michal Warecki.