Duncan is best known for his coastal scenes and marine pictures taken from around the English coast and Channel Islands. Technically he excelled in depicting rough, breezy seas, such as in the present watercolour. He began to exhibit in 1830 and became a member of the New Society of Painters in Watercolours in 1834. In 1847 he resigned to become an Associate of the Society for Painters in Water-Colours where he became a full member in 1849. The remainder of his studio was sold in these Rooms 11 March 1885.