Together with Alice, Nils developed a new wall painting technique which they called navax—tempera on linen canvas with wax melted in to permanently affix the painting to the wall. Using this method, Nils created numerous decorative murals, including The Triumph of the Arts in the stairwell of the Norrköping Museum, in Folkets Hus in Gothenburg, and at the Textile Institute in Borås.
Alice produced several post-Cubist batik works based on Nils’ designs, but in her own compositions she drew inspiration from Oriental splendours and the mosaics of Ravenna. As a textile artist, she exhibited at the 1925 World Exhibition in Paris, where she was awarded a gold medal, and at the Stockholm Exhibition in 1930.