It is probable that this picture is a finished sketch for a painting entitled Andromeda that Frost exhibited at the Royal Academy, 1850, no. 304. The Art Journal recorded of the exhibited work: 'The title is accompanied by an allusive passage from Il Penseroso: -
Or that starred Ethiop queen that strove
To set her beauty's praise above
The sea nymphs, and their powers offended.
Andromeda is chained to the rock, and assembled round her are a Triton and a company of sea nymphs. All the figures are nude, and are painted with that refinement of texture and careful drawing which prevail in the works of the painter - whose female impersonations are conceived so purely in the spirit of the antique, as to offer a remarkable contrast to works in which the ordinary model is all but faithfully represented. It may be observed that the movement of Andromeda is a pose frequently seen in the works of Mr. Frost'.
A watercolour of the same title by Frost, also dated 1850 and presumably a reduced replica of the Academy picture (although it should be noted that the pose of the figure is in reverse from the present work) was sold by Christie's London, 5 June 1984, lot 96 (illustrated).