McCulloch's landscape paintings celebrate the romantic scenery of the Scottish Highlands, emphasising its dramatic grandeur. McCulloch, from Glasgow, was influenced by John Knox's luminous paintings, Sir Walter Scott's vivid prose and the expressive pictures by John Thomson of Duddingston, Edinburgh. McCulloch's summer sketching tours of the West Highlands inspired some of his most powerful paintings, which were created back in the studio. His landscapes combine a magnificent sense of scale with an emotionally charged atmosphere, and contributed to the popular Victorian image of the Highlands. McCulloch also recorded the crumbling houses of Edinburgh's Old Town, and was among the first artists to focus on the urban and industrial landscape of Scotland.