"...Rectilinear forms, vertical posts, and horizontal lintels are varied by gentle angles recalling monumental gates. The central symmetry of entrance and passage recurs several times. But soon the somber colors of earth, sky, and night are joined by the warm reds of sun and blood, and the translucent greens of precious stone...the forms have a complexity of life and resonance which only the freedom of abstraction permits."
Andrew Robison, National Gallery of Art, Washington D.C.