Some of Fekete's sketches from the Monochrome period (Sentinel, The New Gate to the Gunnery are reminiscent of M. C. Escher's non-Euclidean geometric universe, but also share some of the architectural and sculptural sensibilities of van Doesburg's and van't Hoff's Neoplasticism.
A number of references to the Symbolist painter Arnold Bocklin, in particular his painting The Isle of the Dead, can be found within The Quest for Gold.