Stygimoloch battling Pachycephalosaurus, dinosaur fight, head-butting action, spiky horns, dome-shaped skull, thick neck muscles, scaly skin texture, prehistoric forest background, ferns, conifers, dynamic pose, aggressive stance, dust clouds from impact, intense eye contact, dramatic lighting, sunset, low angle view, detailed scales and spikes, realistic rendering, vibrant colors, Jurassic period atmosphere, action-packed scene.