In the realm of visual arts, John Duncan would refine his Celtic myth inspired Symbolist painting to include an increasing emphasis on collage and the flatness of the image. In architecture and the decorative arts, the towering figures of Charles Rennie Mackintosh and the Glasgow Four would give Scotland its very own "school" of modern design and help create the "Glasgow style". Scotland in the early 20th century was experiencing an efflorescence of creative activity, but there was not yet a sense of a particular shared movement or an overt national inflection to all of this artistic effort.[citation needed]