dressage England english equestrian field grass Great Britain horse jumps meadow paddock show animals appearance contestants events grooming horsemanship horses juniors leisure mammals outdoor-sport ponies pony posture Riders riding show-ponies skills sport young black-legs black-mane black-tail breeds covering creamy dark-bay domesticated equine equine-intelligence gold-coat golden grazing hooves horse-blankets horse-riding intelligent mammal manes opposite-directions palomino reddish-coat tails white-mane white-tail animal Australia competition rider saddle