I've been growing my 'skinny caterpillars' (as my sister used to call my eyebrows!) since Christmas and they are looking a lot thicker but still a bit sparse in places. However, what better brow-spiration than the 3.1 Phillip Lim AW14 show make up where the big brows were the most prominent feature of the face:
And as well as Cara, the gorgeous Lily Collins is rocking a great pair... And the 'original' bold brow queen has to be Jennifer Connolly.
To make your brow look 'now' (and not scouse!) you need to aim for the same thickness throughout and, if possible, wider at the arch. It also needs to look natural and not too perfect- a few stray hairs is a good thing.
My hero eyebrow products are the Mac eyebrow pencil in lingering- awesome to fill in brows when I'm quite short of time and also has amazing staying power, especially if you're going to be sweating or getting wet (day at the pool!) as it is quite a waxy consistency.
Second for when I have more time and for when I'm looking for a stronger look I use Illamasqua's eyebrow cake in thunder and apply with the Mac 208 brush. It's a bit darker than the Mac pencil and not as long lasting but looks amazing.