Whimsical Folk Graffiti Illustration

Transform this photo into a fantasy folk flat illustration with graffiti elements. The original composition and figures are preserved, but all details are simplified into clean, colorful, flat shapes with a playful handmade feel. Use soft and vibrant colors, rosy cheeks, playful line drawings, cute decorative symbols, flowers, birds, whirlpools, and warm urban background details. The overall atmosphere should feel warm, joyful, artistic, and charming, just like the illustrations in modern children's books.