"Create a simplified, cartoon-style illustration of Commander Barnacles, a polar bear character, based on the original design from Octonauts. He should have white fur and wear a more elaborate uniform to reflect his higher rank, featuring a darker shade of blue with gold trim and additional insignia or decorations. The style should closely match the original Octonauts art style, maintaining his friendly and approachable appearance, but with a touch of authority to signify his elevated status."