Couple of things I'm noticing about the picture.

1. The back of the "swimming pool" resembles a church. In particular, that little arched cutout is typically where you place the alter in a Catholic church. Why put it in a swimming pool?

2. I'm wondering if the ceiling lights are the same as the symbol in the necklace. It may just be an artifact of perspective, but it looks like two of the lights coming out at the top and sides are longer than the rest, resembling the "ears" of the medallion.