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.
I would like my swirl tattoo blended around the compass. I've currently got a rose on an East/West that needs to be transformed into a compass. This showcases how I am guided by my inner compass/intuition