brown horse in a vibrant meadow on a sunny day. concept of nature, outdoor scenery, peaceful countryside, and equestrian

horse brown mustang meadow nature outdoor scenery peaceful countryside equestrian beauty animal field sky clouds grass wildflowers landscape summer day rural farm pasture freedom serenity tranquility sunlight environment green flora fauna mammal domestic wildlife pastureland ecosystem life idyllic background season panoramic scenic vibrant concept design stallion mare pony ai generated