"Escher Transformer" is derived from M.C. Escher's design for a painted
concrete pillar in the building of the Bureau of Water Management in
Haarlem, Netherlands (1962). The design incorporates three water-related
motifs (Symmetry Nos. 111, 112, 113) that flow into one another to create a
vertical metamorphosis from "bird and flying fish" into "boat and flying
fish" and finally into "boat and fish".