single continuous line drawing proud white horse walks gracefully with its front hoof forward. wild mustang gallops in free nature

animal art beautiful black concept conceptual continuous line detailed doodle drawing element emblem equestrian equine farm freedom hand horse icon isolated lines mammal mane mare minimalism mono mustang one outline poster purebred rear rearing ride simple single speed stallion standing style thoroughbred vector west white wild proud walks gracefully front hoof forward gallops nature nature strong mascot graphic design