This watercolour is unusual for John Robert Cozens in being almost purely a sky study, divorced from any identifiable topographical context. Paul Oppé remarked on its similarity with some of the coast scenes painted by his father, Alexander Cozens, and also the latter's famous drawing of 'The Cloud' (no.17). However, John Robert's approach to his subject is subtler and less schematic than his father's, and his skies in general are more concerned with atmosphere, space and light. Skies always play an integral part in the design of John Robert Cozens's watercolours, contributing to their mood. They have been described as, at one moment, 'infinitely luminous', and at another 'charged with menace and oppressive cloud'.