these are some artworks by modern artist graham matthews, his top drawing is part of a set of drawings of similar graphite drawings, it manages to show depth by the difeence in line work. the ay he has built up the lines in the middle make them appear closer than the thinner lines behind. the second is a painting of an iceberg, it relates to jorn utzon's opera house by showing the light reflecting of the ice berg, where jorn was influenced by the snow covered mountains of his danish homeland, where the soft powdersnow didnt glisten as much as the harder more icy snow, and he tried to recreate on the shells by having shiny glaze tiles, and dull matte tiles.