The image features a graphic design with a white background. At the center, there is a black text that reads "PROMOTED TO BIG SISTER" with the word "BIG" in a larger font size than the rest of the text. The word "SISTER" is emphasized by being in a cursive font. Surrounding the text are several small black stars, adding a celebratory or festive feel to the design. The overall style of the image is simple and playful, with a clear focus on the message conveyed by the text.