This seems to be just another lobby on the thirteenth floor of a middle class building in Ukraine, with the exception of the unique concrete painted walls. The lady who lives in one of the apartments is devoted to keeping things the way they are supposed to be. According to her, some neighbors tried to protest against the way it looks and they tried to even ruin this artwork, although they couldn't really do much about it. So she is keeping the looks as it is regardless of her neighbors disapprovals.(Link)