The scene shows an alien looking sea monster swallowing an entire lighthouse with one of its tongue-tentacles (the one holding a "Hanged Man" from Tarot), while the other tentacle is throwing a single coin towards the viewer.
The only visible hand of a monster is throwing a chest full of gold onto the road to the lighthouse.
Since the creature emerged from the deep, it set in motion a powerful tsunami-like waves, which are about to submerge the small settlement in the back.