copy or coincidence?

or maybe just homage... you decide

up: André Komatsu

down: Marlon de Azambuja, born 1978

up: Blinki Palermo, born 1943

down: Antonio Ballester Moreno, born 1977

up: Frank Stella, born 1936

middle: Laura Owens, born 1970

down: Britton Tolliver, born 1976

up: Juan Lopez, born 1979

down: Will Boone

up: Cecilia Paredes, born 1950

down: Emma Hack, born 1972

up: Achim Riethmann, born 1979

down: Avelino Sala, born 1972

up: Lee Bul, born 1964

down: Diana Al-Hadid, born 1981

up: Olaf Holzapfel, born 1969

down: Guillermo Mora, born 1980

up: Papo Colo, born 1947

down: Bernardi Roig, born 1965

up: Jordi Ribes, born 1972

down: Adam Sorensen, born 1976

up: Jaume Plensa, born 1955

down: Ghada Amer, born 1963

up: Wilhelm Sasnal, born 1972

down: Grazyna Smalej

Up: Merlin Carpenter, born 1967 

Down: Kim Gordon, born 1953 

up: François Morellet, born 1926

down: Damien Hirst, Born 1965

up: Hans Peter Feldman, born 1941 

down: Ian Waelder, born 1993