This design features a festive greeting card with a white background. At the top, the phrase "Dear Santa, My Sister Did It!" is written in a playful, cursive font with a red outline, suggesting a humorous or proud message. Below this, the word "Santa" is written in a larger, bold, and stylized font with a red outline, and the word "My" is written in a smaller, bold, and stylized font with a pink outline. The word "Sister" is written in a larger, bold, and stylized font with a pink outline, and the word "Did" is written in a larger, bold, and stylized font with a pink outline. The word "It!" is written in a larger, bold, and stylized font with a pink outline, and it is emphasized by being larger and bolder than the other words. The overall style of the image is cheerful and holiday-themed, with a clear focus on the message of the card.