During the late fifties/early sixties Molvig held weekly, very informal, life drawing classes which were central to the Brisbane art scene at the time, and he was mentor to various emerging artists such as John Aland, Andrew Sibley, Gordon Shepherdson, Mervyn Moriarty, Joy Roggenkamp, Hugh Sawrey and many others.
Molvig was an accomplished and honest portrait painter - painting fellow artists Charles Blackman, John Rigby, Joy Roggenkamp, Russell Drysdale and Barry Humphries as well as many privately commissioned portraits, i.e., Paul Beadle, Sir Charles Moses, Sir Percy Spender, Clem Jones and Dr. Scougall.
[1] The exhibition opening featured a moving speech by his wife Otte van Gilst who was accompanied by her sons Nick and Alex Bartzis as well as extended family.
Molvig was an emotional and intuitive painter, deeply concerned with humanity and its follies and always invented symbols and a particular 'style' to suit the criteria of the subject he was painting.
This is very evident in his 'Eden Industrial' series 1962 - impressive images of Adam and Eve in an industrialised Garden of Eden, with heavily textured surfaces achieved by burning layers of paint with a blowtorch.