Nuns are meant to take leave of the world, not leave of their senses. The one in green is not of this world, but not in the classical sense, rather in science fiction.
They chickened out of real religious life years ago.
As would St Benedict, seen here instructing his beloved Sister Scholastica.
Not least, the Founders would wonder what need they had of a Labyrinth when they followed the Rule written by St Benedict. Seen here the Labyrinth under construction.
Cathcon has already covered a similar outfit, The Doom (sorry that should be the Dome).