Create an image of a stunning and mature college girl wearing a sleek track outfit, poised elegantly on an outdoor track field. Capture this moment in a photorealistic style, akin to a masterpiece of realism. Utilize high contrast and hyper-realistic digital art techniques that are trending on platforms like Artstation, ensuring an 8k HD resolution for maximum detail and lifelike quality. Highlight the nuanced texture of her skin and convey a sense of realism that speaks to her vitality and beauty. Use a Nikon D850 with a lens set at f1.6 for a rich color profile and dramatic lighting akin to Kodak Portra 400 film stock, enhanced by Unreal Engine for surreal detailing. Prioritize capturing the essence of movement and vitality, avoiding any unwanted elements such as disfigured or disproportionate features. Celebrate the natural beauty and athleticism of the subject, ensuring clarity, detail, and an engaging composition.