One makeup trend that's really stood out during London and New York fashion week is the revival of smoky, winged eyeshadow styles. The sultry, eighties-influenced look seen here at Marc Jacobs' show is strikingly effective when done right but you'll look like you've been punched in the face if you get it wrong.
To get the look you'll need to use plenty of eye pencil to line the eyes before getting seriously smudgy with some shadow (pale slate grey works best). I'd recommend Elizabeth Arden's smoky eyes powder eye penceil in 'gunmetal' for the liner, accompanied with something smoky yet intense. MAC's grey eyeshadow quad should do the job nicely.
Related: Runway Rundown: Luella S/S 2010 at London Fashion Week | Runway Rundown: Marc Jacobs S/S 2010 at New York Fashion Week