Whimsical Boy Girl Soft Grassy

Design a whimsical illustration featuring a boy and a girl sitting on a soft, grassy surface. The boy has curly hair and is wearing a light blue shirt with rolled-up sleeves and denim shorts. He is holding a green book. The girl has long, straight hair with a pink headband, wearing a vibrant yellow dress and is holding a purple book. They are smiling at each other, surrounded by a light pastel background with subtle clouds and butterflies fluttering around them.