In the foreground is a merchantman, in port-bow view and flying the red ensign. To the left is a cutter running under a large square course and foresail. To the right, a ketch-rigged royal yacht. In the background, above the white cliffs, stands Dover Castle, while the town of Dover lies to the left, in the hollow between the lines of cliffs to right and left.

Most of the artist's extant paintings date from the last six years of his career and are principally marine subject-matter. Brooking's reputation as a marine artist was well established by 1755, and although his stylistic range shows the influence of Simon de Vlieger and Willem van de Velde the Younger, his approach was uncompromisingly individualistic. His careful attention to detail evinces an informed knowledge of maritime practice and naval architecture. The painting has been signed by the artist.