((Best quality)), ((masterpiece)), ((realistic)), portray a towering highrise office building in a futuristic cityscape. Capture the bustling atmosphere and vibrant neon lighting. The modern and sleek architectural style should be emphasized, showcasing the building's grandeur. Use a digital rendering medium to create a photorealistic concept art. Employ cool tones like blue and silver to evoke a futuristic ambiance. Utilize CGI and ray tracing techniques for high-definition details