"Afterlife Afterthought" by Peruvian-American artist Emil Alzamora. This one is particularly odd because it also the perfect image of a "rokurokubi" -- a traditional Japanese monster/ghost. It's unclear whether the connection was intentional or not.
Epic Floor Design, although I'm not sure what the idea is. if laid with clear or glass tiles to see the design would be different, but to put black tiles over doesn't make any sense. I wonder if you get a magnifying glass to view the floor.