Tree rings are said to show how old a tree is. So showing tree rings that indicates an older tree, it could either depict you as an old soul or that you are strong enough to grow. But it could definitely depend on your own story.
"You are beautiful, yet cold and aloof. You pride yourself on being a loner. You do not obey, you choose to cooperate. And when you stop baring your fangs long enough to pick a mate, it's for life. And you're fiercely loyal to your pack.