Twiss was born in
Auckland on 23 June 1937, taking up sculpture in the 1950s. He graduated from
Elam School of Fine Arts in 1960 with a Diploma of Fine Arts with honours. In 1965, he received a QEII Arts Council Travel Grant, which he used to study
lost-wax casting in Europe. He is best known for his works in bronze. In 1966, he was appointed a lecturer at Elam, and he eventually became the head of sculpture there in 1974. He retired in 1998. Twiss primarily focused on life-sized sculptures in the 1960s, including the fibreglass series
Frozen Frames, and the 1969 bronze sculpture and fountain
Karangahape Rocks. == Works ==