. The attainable excellence that Giclee printmaking affords makes the reproduction virtually indistinguishable from the original piece. 'Opal' Canvas Art,18x24 The poster industry began to attract aspiring painters who added brighter colors and contrast to posters which turned them into pieces of art in people's homes. They have been designed to attract the attention of passers-by, making viewers aware of political viewpoints, specific events or to advertise a specific product or service.