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.
Henna tattoo, otherwise known as Mehndi, is a sort of temporary ink art and is very popular in Middle Eastern and South Asian nations. Conventional henna is applied to brides before wedding day with an extraordinary party. It lasts roughly for two weeks.