GH made green-grey-green in 1995 and included the artwork in rule c: Remember, the aesthetic outcome of this exercise is purely due to chance and circumstance. It bears no reflection on you, personally. at the David Pestorius Gallery, Brisbane, in 1995. green-grey-green is a standalone artwork. The artwork's medium includes Watercolour and lead pencil on paper, measuring, overall, each 53.5 x 53.5 cm (framed). green-grey-green is in a public collection: Griffith University, Brisbane, 1995.