Recto: upper left, sketch of Perseus fleeing the Gorgons, after beheading Medusa. Upper right, sketch of Perseus flying through a pastoral landscape. Centre left, design for 'Perseus finding Medusa'. Centre, sketch for 'Perseus passing Atlas'. Lower right, sketch for the 'Doom Fulfilled' in which Perseus slays the monster about to attack Andromeda. Lower left, sketch of a group of figures. Lower centre, sketch of the head and torso of a figure. Recto: upper left sketch, design for the final painting is a modified version of this sketch. Upper right, not used in final series. Centre left, in the final design, Medusa is clothed, and Perseus stands behind her. Also the snakes on the heads of the two crouching figures are absent.