An ancient mansion nestled by a tranquil lakeside, captured in 8k ultra-high definition, with flawless composition and exquisite detail, featuring an intricate design and enhanced by octane rendering. This masterpiece is trending on Artstation, showcasing an artistic vision with photorealistic quality and concept art influences in the style of Greg Rutkowski. It boasts cinematic lighting that creates a hyperrealistic ambiance. The scene also offers stunning depth of field, mimicking professional photography, while soft golden light bathes the landscape, casting long shadows and illuminating the lush surroundings.