It's true that perfection can be boring. But there are classic examples of how pretty girls became super sirens when small 'flaws' are 'corrected' - Marilyn Monroe and Julia Roberts would not be the awesome beauties that they are if it wasn't for two marvellous nose jobs. I guess physical perfection gives more room for the personality to shine through - which is a blessing provided that the person has an impressive/compelling personality.
Dewi's not fading too much, is she? Oscar de la Renta ads and Numéro eds are pretty ok, though, that's what Dewi's been doing this season, right? She is having a long carreer and then you can't expect huge campaigns every season - except for Gisele, Angela and Kate Moss of course.