Мафия 15. Cosa Nostra.

The sky, do you think the sound of hooves is a clue? Well, it could be, because the rest of the text doesn't stand out in any way... although, this part.

By the way, I don't think so either. A large image probably can't be a clue; maybe some small detail could be, but the image itself, in its direct meaning, probably isn't.