Transform this photo into a whimsical folk flat

Transform this photo into a whimsical folk flat illustration with doodle elements. Preserve the original composition and characters, but simplify all details into clean colorful flat shapes with a handmade childlike feel. Use pastel and vibrant colors, rosy cheeks, playful line art, cute decorative symbols, flowers, birds, swirls, and cozy urban background details. The overall mood should feel warm, joyful, artistic, and charming like a modern children’s book illustration.