I think it is ludwig bethooven´s moonlight sonata
This artwork was painted by Johannes Vermeer in 1665. The artwork is called Girl with a Pearl Earring.
The Parting of Lot and Abraham is about their literal parting - Abraham took his family to Canaan, as God wanted him to, whereas Lot went to Sodom, and defied God's wishes. Now, having this in mind, maybe this mosaic does symbolize B. heaven, as Abraham and his family would go to heaven eventually, because they obeyed God's orders and wishes.
