portrait of a man standing in the center of a high dimensional polytope hypercube dodecahedron tesseract made of energy and spacetime fluctuating at the oscillatory rate of brain waves marc simonetti mc escher piet mondrian ismail inceoglu anato finnstark jacques callot albrecht durer john flaxman gustav dore engraved ink stamp aquatint etching intaglio 4k artstation wikiart wikipedia