The truth below

Decausum is aparently an utopia, the perfect city which hides a terrible secret.
This is part of the concept art from my homonymous novel.
The city is divided in seven sections, each one creepier and cruder than the last one, this is the fifth.
The floor is covered with water and the reflection in it shows the reality: a post-apocalyptic and destroyed city plagued by monsters who eat humans.