Moncrieff has been exhibiting since 1978 in gallery locations in Perth, regional WA and also on occasion in the Eastern States. In this time, he has had 21 solo, 11 shared and participated in a great many group exhibitions. His paintings, drawings and prints are now part of a considerable number of major public and private Australian art collections. Until 2007 he was the coordinator of the Painting and Drawing programme at Edith Cowan University, Mount Lawley WA campus. Over the years he has curated several thematic exhibitions.
He now lives at Kentdale on the south coast of WA with artist Jillian Green. He has designed and built their house, studio, workshop orchard and vegetable garden. He continues to develop and evolve his art practice.
Albany City Council, Artbank 1981, 2010, Art Gallery of Western Australia, City of Bunbury, Edith Cowan University 1996, 2002, University of WA [Lawrence Wilson Art Gallery], Princess Margaret Hospital, Royal Perth Hospital, Fremantle Education Centre, City of Albany Art Collection, City of Bunbury Art Collection, Fremantle City Council, Rockingham Shire Council, Como Secondary College, Morley Senior High School, Family Law Court, Perth WA, Wongon Ballidu Shire, The Horn Collection, 2008, 2019, Forrest Nedela Collection, PACT Construction, Griffiths Architects, Janet Holmes A Court Collection, numerous private collections, Australia and overseas.