Decoration of the Camera degli Sposi (Camera Picta), by Mantegna Andrea, 1465 - 1474, 15th Century, fresco and dry tempera. Italy: Lombardy: Mantua: Ducal Palace. Vault. The oculus open on a cloud-furrowed/cloud-streaked sky: female figures and winged putti lean out of the oculus. The Oculus is charachterized by cornices/mouldings and a ringed banister/balustrade, upon which a tub containing a citrus branch and a peacock are resting. Perspective illusionism/trompe l'oeil