A highly detailed and ultra-realistic 4K image of a father and son riding horses side by side, both wearing traditional cowboy attire. The father is in his late 30s, with a rugged, weathered face, and the son is about 8 years old, with a look of admiration towards his father. The scene is set in the golden light of a late afternoon, with the warm sun casting long shadows. The background features an expansive, open field with rolling hills in the distance. The horses are muscular and strong, their coats shining in the sunlight, and the bond between father and son is palpable in their expressions and body language