In the eighteenth century Scotland began to produce artists that were significant internationally, all influenced by neoclassicism, such as Allan Ramsay, Gavin Hamilton, the brothers John and Alexander Runciman, Jacob More and David Allan. Towards the end of the century Romanticism began to influence artistic production, and can be seen in the portraits of artists such as Henry Raeburn. It also contributed to a tradition of Scottish landscape painting that focused on the Highlands, formulated by figures including Alexander Nasmyth. The Royal Scottish Academy of Art was created in 1826, and major portrait painters of this period included Andrew Geddes and David Wilkie. William Dyce emerged as one of the most significant figures in art education in the United Kingdom. The beginnings of a Celtic Revival can be seen in the late nineteenth century and the art scene was dominated by the work of the Glasgow Boys and the Four, led Charles Rennie Mackintosh, who gained an international reputation for their combination of Celtic revival, Art and Crafts and Art Nouveau. The early twentieth century was dominated by the Scottish Colourists and the Edinburgh School. Modernism enjoyed popularity during this period, with William Johnstone helping to develop the concept of a Scottish Renaissance. In the post-war period, major artists, including John Bellany and Alexander Moffat, pursued a strand of "Scottish realism". Moffat's influence can be seen in the work of the "new Glasgow Boys" from the late twentieth century. In the twenty-first century Scotland has continued to produce successful and influential artists such as Douglas Gordon and Susan Philipsz.