Mary L,
I suffer from a rare disease that is aggrevated by sunlight and florescrent lighting. I am very aware of the power of sunlight.
I also have quilts that have faded so much in parts that they look like two different fabrics. As much as we want our work to last forever it will only do so if we hide it away from the light etc. Your quilt was charming aren't you glad you were able to share it with your family and friends? I have seasonal wallhangings I rotate on a rack on my kitchen wall. I would imagine they are faded if I were to compare them with fabric leftover from their construction. If I enjoyed making them the first time I might not mind repeating the task. It would give me a chance to not make the same mistakes I made the first time around.