Create a high-resolution digital portrait of a young toddler girl with a photorealistic style. She should have large, expressive brown eyes that are centered and gazing forward, conveying a sense of innocent curiosity. The girl's skin should be soft and have a natural tone, with subtle pink cheeks suggesting a healthy glow. Her hair should be light brown, with a slight wave and styled in a top-knot bun secured with a small, pastel-colored hair tie. Tiny wisps of hair should escape the bun, framing her face gently. Her ears should be small and adorned with tiny round stud earrings. The toddler's facial features should be balanced and harmonious, with a small, upturned nose and full, pouty lips that have a natural pink hue. She should be wearing a pastel green dress with a delicate floral pattern, appropriate for a toddler. The background should be a soft, neutral color to keep the focus on the girl. Capture a gentle, serene expression on her face that reflects a calm and contented demeanor.