a surreal dreamlike scene of an ornate spiral staircase leading to a portal in the sky, volumetric lighting, unreal engine 5, majestic awe-inspiring atmosphere, photorealistic, extravagant hyperdetailed 3d matte painting, hyperrealism, hyperrealistic, 8k, elegant cinematic fantasy art, overwhelming depth and detail, magic, intricate masterpiece, vibrant fantasy style 8k ultrahd octane render