Fantastic Voyage, by London-based street artist Slinkachu who creates installations in finely-detailed miniature using litter and cut up train set figures less than tall. "It is a strange kind of buzz abandoning your creations on the street," he says
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.