You don't say what you mean by that "new" look. Remember that handmade items seldom look like those that are mass produced, and that's a good thing. What exactly do you not like about how the quilt looks? If it doesn't look square, or lie flat, you might want to dampen it and let it dry on a flat surface, or you might even need to block it. If the fabrics faded a lot, or ran, then that's another problem, not so easily solved. A picture would definitely help!