Front: Hatter, Willow, and Sparkle surrounded by elements representing their personalities (tea cups, webs, stars). The title harmoniously integrates with the elements.
Back: Illustrate the elements converging in a central magical grove, symbolizing the unity that blossoms through friendship. Conclude with a teaser about the magical adventures awaiting readers.
Remember, the cover should be visually captivating and offer a glimpse into the enchanting world of your story. Consider collaborating with a skilled illustrator or designer to bring these concepts to life.