I agree. I think she's spoiled her look with this, in my opinion, ugly tattoo. If she carries on adding them she'll definitely spoil what was once a gorgeous look.
Unless she turns in to a cross between Miley Cyrus and Lady Gaga, it's highly unlikely she's going to be getting her arse out to show everyone really, is it ?
So I can't see how something that very few people will actually ever see properly can "spoil her look" ?
I suspect she's got more than enough money to ensure that any surgery that would affect a tattooed area would be done in such a way as to minimise any scarring.