George Stubbs' oil painting depicts a bay horse and King Charles Spaniel situated along the Serpentine, the famous lake in Hyde Park, showcasing the artist's meticulous attention to anatomical detail and animal portraiture. Executed in oil on panel, the work demonstrates Stubbs' characteristic precision in rendering both equine and canine subjects with scientific accuracy while maintaining an elegant compositional balance. The painting exemplifies the 18th century taste for depicting prized animals within fashionable London settings, reflecting the status and leisure activities of the period's affluent patrons.