What do you think?

So I’m going to turn sixteen next year and during the summer my older sister suggested getting matching tattoos for my birthday. My parents are ok with it as long as we keep a picture of what we’re planning to get in our rooms for the months until then. We are planning on getting the big and Little Dipper, and though it sounds cliché it actually has a lot of meaning to us. When we were younger we lived in the country and would stargaze at night, pointing out those constellations. Of course this idea may change over time, but that’s the point of keeping it in our rooms, to look at it and make sure we like it. My sister will also be going off to uni shortly after my birthday, and she’s planning on moving pretty far away. I personally really like the idea, so I’m not writing this to try to convince myself to do it. I am, however, interested in your opinion because my mother tends to worry about what others think, and she wants to know how people would take it. Thank you in advance for your insight!