He has designed and created large public sculptural water features and murals, substantial public cenotaphs, commemorative cast bronze sculptures, and a large body of religious and spiritual work that includes stained glass windows, altars, lecterns, baptismal fonts and mosaics.
[3][5] His first major piece, also in 1985, a commissioned stained glass window, was a memorial to the Royal New South Wales Regiment for the Garrison Church, in The Rocks, Sydney.
[9] Another significant work was an 11 x 3m stained glass window, commissioned by St Bernadette's in Castle Hill, New South Wales.
[12][13] In 1990, he completed a granite, aluminium and beveled glass sculpture, Purity of Spirit, for Neeta City in Fairfield, New South Wales (now in a private collection).
[16][3][5] Also in 1991, Plowright was commissioned by the Penrith Returned and Services League to design and create a bronze sculpture, a tribute to the Australian and New Zealand Army Corps at Gallipoli.