Mathematics and art have a long historical relationship. The ancient Egyptians and ancient Greeks knew about the golden ratio, regarded as an aesthetically pleasing ratio, and incorporated it into the design of monuments including the Great Pyramid, the Parthenon, the Colosseum. There are many examples of artists who have been inspired by mathematics and studied mathematics as a means of complementing their works.
I should note that these bigger statues, as the "gargoyles" from the eponymously titled 90's cartoon, are grotesques. Gargoyles, as root association with "gargle" hints, spout water; one can be seen center left, at the appropriate level.