Durer's iris Durer's iris from Mark Calderwood Durer's iris Contemporary drawing using the authentic techniques and visual language of the renaissance masters. Graphite, oil pastel and body colour on antique 18th century linen paper. gLike Durer's iris Contemporary drawing using the authentic techniques and visual language of the renaissance masters. Graphite, oil pastel and body colour on antique 18th century linen paper. Illustrator Research Illustration Share R 7 n Mark Calderwood Melbourne, Australia Follow Contact