Rihanna's under-boob tattoo

Musician Rihanna who recently lost her grand mother 'Gran gran Dolly' decided to get a huge tattoo of the goddess Isis right underneath her boobs in memory of her grand mother.

 Rihanna tweeted "GRAN GRAN DOLLY-always in and on my heart"
      Its obvious Rihanna misses her granny, but isn't this tatt a little overboard?