Portrait of a teenage girl with a serene expression, set within a cool-toned color palette featuring soft blues, purples, and silvers. The scene captures intricate details of her flowing hair and delicate features, bathed in gentle, diffused light, creating an ethereal atmosphere. The background subtly blends into abstract shapes, enhancing the dreamy quality of the composition. Rendered in 8k resolution with ultra-high definition and high dynamic range for striking clarity and depth.