Digital Illustration Depicting a Girl

Create a digital illustration depicting a girl with long hair cascading down her back, shifting seamlessly through holographic pastel hues. A single, exquisitely coiled unicorn horn emerges from the center of her forehead, adding a magical flair to the image. The composition is characterized by soft, glowing colors that blend harmoniously, showcasing a careful attention to detail. Her features are illuminated by subtle, diffused light, offering a vivid sharpness that contrasts beautifully against the ethereal, star-filled background.