Aerial view of a hyper-detailed, opulent royal fortress from a dark fantasy realm, featuring intricate architecture with towering spires and vast courtyards, enhanced with nuanced CGI elements, rich depth focus, and dramatic volumetric lighting, photorealistic and richly textured, capturing the intricate, labyrinthine design in hyperrealistic detail with a maximalistic approach, set against a backdrop of swirling dark clouds and eerie atmospheric effects.