The graphic area with its improvised and informal meanders dialogues with the colored geometric surfaces. (Patrick Piccinelli)"Unlike the American artists of his time who for the most part practiced all-over; Motherwell integrates the void as a structuring element of his compositions as shown in the serigraph with the addition of collage dated 1964 Untitled from X + X ( Ten Works by Ten Painters) in which the space left blank becomes; by subtraction; the main figure of the work. "Orianne Castel /" Robert Motherwell; a work in perpetual motion "/ Site Art Critique / October 2019