I think it looks hot. I love girls with tattoos.
However she needs to extend it further up her back otherwise the placement is all wrong.
Im a guy with a lot of tattoos and while i dont have to defend the art and i dont mind if people hate them i do find the "what will it look like in 30 years time" comments to be a bit silly. No one looks like they did 30 years ago. When im 75 i will be worrying about not peeing the bed and hoping im still a fully functioning human being. If my tattoos look poor on my saggy skin thats fine cos saggy skin aint all that anyway. I can live with it., im sure she can too.