Judging at quilt shows is really based on the judges personal preferences of technique, style and even color. I have a friend who is a renowned Hawaiian quilter for decades and designed and taught Hawaiian quilting entered her quilt in a show and was criticized by the judges basically because they didn't do hand applique and quilting and didn't like that technique. I entered one of my Hawaiian quilts in show and won a blue ribbon but the notes they wrote in one section were really strange indicating they had no idea about Hawaiian quilts. Your quilt is lovely and it is yours and if it makes you happy that's all that matters. Keep quilting, don't give up.