Cinematic Dark Fantasy Encounter Prompt

ultra realistic cinematic photo of a young man standing in a dark alley at night, head slightly down, relaxed confident pose, wearing black short sleeve button shirt, dark blue loose jeans, black shoes, bucket hat covering eyes, hands in pockets behind him a gigantic demonic skeleton creature made of glowing purple cosmic energy, horns on head, skull face with sharp teeth, intense glowing yellow eyes, massive hands reaching forward, surrounded by swirling purple particles, nebula-like texture, energy aura flowing violently ground wet with reflections, purple light illuminating entire scene, dramatic cinematic lighting, volumetric fog, high contrast, ultra detailed, 8k resolution, photorealistic, depth of field, sharp focus, unreal engine, octane render dark fantasy style, supernatural energy, glowing particles, cinematic composition