((best quality)), ((masterpiece)), (realistic), (photorealistic), (detailed), (top quality, best quality, beautiful and aesthetic:1.2), intricate details, extremely detailed, solo, a grim reaper whose face is a skull riding on a black ghost horse, skeleton horse, wearing a medieval hood and a cape, ruined gothic castle in the background, dirt road at dusk, a moon behind clouds, gradient sky, concept art, grotesque, animal anatomy, gloomy, scary, dark fantasy, by H.R. Giger, trending on artstation, eerie atmosphere, 8k,