After an uncountable number of playthroughs, I caught sight now of a portrait of a woman outside a wall in Rivington, visible from the street. Moreover it is hung under a lantern to be visible in the evening/night. There are no tooltips when you hover over it and you can't examine it. What could this be ? Did a dev smuggle a portrait of their darling in the game ? Is it an easter egg ?

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]