I agree on the way you handled the situation. Your cakes are pretty. How can you tell if a cake is dry by the appearance and haven't tasted it? I hope she did sneak a piece and apologizes to you later for her behavior.
Welcome Dan, I know a man that makes beautiful wedding cakes and a variety of cakes and other goodies. I was really surprised when I saw his work and his cakes taste great. I would say if a man can cook up a good meal why not decorate cakes. Go for it!