Herman said, "I think it is one of my key pictures and the most important one I did in Wales." The mural is held in the permanent collection of the Glynn Vivian Art Gallery, affiliated with the Swansea Museum. Some of Herman's work was collected by the Davies sisters, British art patrons and collectors in Wales, as part of their 20th-century holdings. They bequeathed their joint collection of 260 works, particularly strong in Impressionist and post-Impressionist paintings and sculptures, to the National Museum Wales in the mid-20th century, greatly expanding its range. Leaving Wales in 1955 because his health was affected by the damp climate, Herman lived briefly in Spain and then in London. All the same, he won the Gold Medal for Fine Art at the 1962 Welsh National Eisteddfod. In 1955 Herman moved to Suffolk with his partner, Nini Ettlinger, whom he married in 1961. The death of their young daughter prompted them to move away and from 1972 Herman lived in the house in West London where he died in February 2000. In 1981 Herman was awarded an OBE for services to British Art and was elected to the Royal Academy of Arts in 1990. Herman's work is held in many major public and private art collections.