This month we explore the opacity of gouache and the way that it dries to a flat matt finish. Gouache was often used in poster design in years gone by and you may remember the railway posters from the 1930s and the posters for holiday destinations like Blackpool and Cambridge from around the same time. The shapes were simple, the colours were flat and even, and this was down to the gouache paint that was used.
The photo reference (right), the castle on the hill, will serve us well as it already has several flat surfaces,
