2019 - SEEING THE UNSEEN
2018 - HEART OF MATTER
2017 - MAKING THE INVISABLE VISABLE
2015 - CONCRETIONS
2014 - EDGELANDS
2006 - 2013 - WHEN MEN AND MOUNTAINS MEET
2009 - THROUGH A GLASS DARKLY
2008 - MESSENGER
2006 - FLYING COLOURS
2000 - 2010
2004 - INSCAPES
1990 - 2000
1980 - 1990
1968 - 1980