Majestic top view of an intricately detailed colossal royal castle, embedded with elements of dark fantasy, rendered in CGI with stunning depth focus. Features luminous volumetric lighting, merging photorealistic textures with hyperrealistic details, showcasing a labyrinth of winding architecture. The design is elaborate and complex, yet maximalistic, capturing the grandeur and mystery of its ancient battlements. Enigmatic shadows and glimmers of light dance across the castle's surface, emphasizing its towering spires and expansive courtyards against a dramatic sky.