Stella Sirenix Image????!!!

I founf this image on Winx 4 Life Blog, claiming it's official but I don't think it is. For one, take a look at her face. The eyes are way to narrow to be Stella's. (They look like Flora's or Roxy's eyes.) And in the trailer, yes I know it was in 3d, but Stella had a one strap outfit on; it wasn't completely sleeve-less. Don't get me wrong, it's quite a beautiful image of Stella, but I just don't think it's an official one.