Create a cover for a book about a curious 6-year-old girl who starts asking questions about money after receiving a bill on her first day of school. the cover should depict the girl as the main character and show elements related to the theme of money and saving, such as a wallet or coins. the cover should also include a portrait of the girl with an inquisitive expression and use warm, inviting colors, such as yellows and oranges, to grab the reader's attention.