Cyberpunk cowboy in a sleek, futuristic cowboy hat astride a customized, biomechanical tauntaun, traversing a neon-lit alien terrain under a sky filled with vibrant auroras. The landscape features towering, iridescent rock formations and pulsating bioluminescent flora. Shot with a 50mm lens for a photorealistic effect, capturing the intricate details of the cowboy's augmented gear and the tauntaun's intricate cybernetic enhancements. The scene is illuminated by cinematic lighting, casting dynamic shadows and highlighting the otherworldly atmosphere.