 Procktor's work, primarily in oils, acrylics and watercolour, drew on pop art influences, but was also influenced by his travels (he visited Italy, Greece, India, China and Japan, among other places).He was also adept at print-making, producing a sequence to illustrate a new 1976 edition of Coleridge's "The Rime of the Ancient Mariner".In 1984 he was commissioned to paint a reredos for the St John the Baptist's Chapel in Chichester Cathedral.