A demonic god with a regal demon crown, wielding fire magic in their hands, strides confidently through lava. The scene captures a masterpiece of the highest quality, perfect for a cinematic CG wallpaper. The image boasts HDR and ultra-realistic details, with an 8K resolution that highlights the hyper-detailed face and the dramatic environment. Utilizing the capabilities of Artstation HQ, Unreal Engine, and Octane Renderer, it creates a hyperrealistic and immersive spectacle. The focus remains on high detail, avoiding elements like dull or blurred imagery, ensuring the composition is vibrant and cohesive.