a beautiful hyperrealistic ultradetailed matte painting of a demonic hellhound on fire standing in the middle of city street at night in an abandoned post-apocalyptic city, unreal engine, deviant art, flickr, artstation, octane render, textured, colorful, hyperrealistic, physically based rendering, pbr render, very detailed, volumetric lighting, octane render, 4k, cinematic, 8k resolution,