Create an adorable, cartoon-style clip art image of one crisp, fresh, and delicious green apple with a single leaf growing from a small stem at the top of the apple core. The emphasis should be on creating a visually appealing and engaging image suitable as a teaching tool for three to four-year-olds. Use a playful watercolor style with soft strokes to give the image a whimsical and child-friendly look. Depict the apple with a round shape and a vibrant red color, showcasing its juicy and appetiz