Prompt: horror-themed demon core . eerie, unsettling, dark, spooky, suspenseful, grim, highly detailed, retro-futuristic demon core . vintage sci-fi, 50s and 60s style, atomic age, vibrant, highly detailed, demon core, extremely detailed digital painting, in the style of fenghua zhong and ruan jia and jeremy lipking and peter mohrbacher, mystical colors, rim light, beautiful lighting, 8 k, stunning scene, raytracing, octane, trending on artstation
Negative prompt: cheerful, bright, vibrant, light-hearted, cute, contemporary, realistic, rustic, primitive