This design features a cartoon depiction of a blue shark with a big smile, celebrating its birthday. The shark is adorned with a party hat and a balloon, adding to the festive atmosphere. The background is white, and there are bubbles scattered around, possibly indicating a celebration underwater. The text "Birthday Shark" is prominently displayed, and below it, there's a playful phrase "doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo doo