Cover Illustration: - A whimsical scene depicting Princess Pip in her bright p

Cover Illustration: - A whimsical scene depicting Princess Pip in her bright pink dress, with a big, sparkling button. She is standing in a lush green garden, surrounded by blooming flowers and butterflies. Bun Bun the bunny sits beside her, looking up at her with a playful smile. The overall tone of the illustration should be bright, cheerful, and inviting. Imagine a cover with a sunny yellow background. Pip stands in the center, her pink dress flowing around her. The button on her dress is a large, sparkling gem, reflecting the sunlight. Bun Bun sits beside her, looking up at her with a mischievous grin. In the background, colorful flowers bloom, and butterflies dance in the air. The title "Princess Pip and the Lost Button" is written in a bold, playful font, with the author's name below it.