The design features a vibrant and eye-catching design that prominently displays the words "BIG SISTER" in bold, uppercase letters. The text is presented in a striking blue color with a white outline, creating a strong contrast against the red background. The word "BIG" is larger than "SISTER," emphasizing the importance of the term "BIG" in the context of the phrase. The overall design is simple yet impactful, with a clear and straightforward message that is easy to read and understand.