Sheila Gertrude Mackie (1928-2010) A PORTRAIT OF THE NATURALIST DAVID BELLAMY, THE ORIGINAL ILLUSTRATION FOR THE FRONT COVER FOR THE BOOK THE GREAT SEASONS signed with initials gouache on board, varnished 50 x 37cms; 19 3/4 x 14 1/2in. NB The Great Seasons by David Bellamy with illustrations by Sheila Mackie, was published by Hodder & Stoughton, 1981.