Digital illustration, whimsical, fantasy. A unicorn with a rainbow mane and tail stands in a field of flowers, looking to the left with a calm expression. The unicorn has a white face with a blue eye, a pink nose, and a white body with a rainbow mane and tail. The background is a dark blue with a starry sky and colorful flowers in shades of pink, yellow, and orange. The style is reminiscent of a children's book illustration with a soft, pastel color palette.