Ultra-realistic fantasy cinematic scene, rugged middle-aged adventurer with short gray hair and beard, muscular build, wearing a black sleeveless tactical shirt, brown cargo pants, hiking boots and a large backpack, riding a massive flying dragon, centered composition, dragon with dark armored scales, giant wings spread wide, glowing eyes, breathing a powerful stream of fire downward, medieval castle city engulfed in flames below, burning towers, smoke, sparks and embers filling the air, dramatic stormy sky, epic fantasy battle atmosphere, dynamic action shot, highly detailed dragon textures, realistic fire effects, volumetric smoke, cinematic lighting, shallow depth of field, movie poster style, hyper-realistic, HDR, 8K quality, ultra-detailed, sharp focus, vertical composition, 3:4 aspect ratio.