Winter Estate Horse Gallop Track

Create a 10-15 second cinematic motion-control video using [RIDER_REFERENCE_IMAGE] and [HORSE_REFERENCE_IMAGE]. Show the same adult rider on the same white horse moving through a private winter estate driveway. Start with a low front angle as the horse exits a stone-and-wood gate at a controlled gallop, snow mist lifting from the hooves and the rider's posture balanced in the saddle. Transition into a side high-speed tracking shot along the curved driveway, keeping the horse anatomy, rider outfit, saddle, mane, tail, and lane direction consistent while the mansion walls, evergreen hedges, and pale mountain skyline pass with natural motion blur. End on a composed hero beat as the horse slows into an open snowy lane, still facing forward with clear rider-horse continuity. Use realistic winter daylight, crisp snow texture, restrained camera shake, and athletic but safe equestrian movement. Avoid real location claims, readable signs, flags, crowds close to the horse, political symbols, brand logos, unsafe pedestrian chase energy, animal distress, injury, warped legs, sliding hooves, changing horse color, changing rider identity, duplicated riders, or camera cuts that break the travel direction.