In the sixties and early seventies there wasn’t the choice of prints and paintings available on the mass scale you find today in the high street. This meant the average house had quite a limited choice unless they were into fine art and commissioning a local artist to paint there pets.
Therefore as well as the crying child or the snooker playing dogs most houses also had galloping wild horses in at least one room in the house. Whether galloping along the beach or splashing in water, whether white brown or black horses, each house.
Why the sudden interest in horses? no idea. Though i do remember gazing as a kid at the picture on our wall of 5 wold horses while listening to the Osmond’s “Crazy Horses” full volume and loving it as i bounced around on the 1970 furniture!