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Up Next: Sofia Richie and Hailey Bieber Just Revived This Classic Nail Colour For Autumn Natalie Munro is Who What Wear UKs news writer and has worked in the fashion industry since she graduated with a degree in Journalism from the University of the Arts London

What you need: A green dress

Sheath Silhouette with High Slit: Tailored to maintain a streamlined profile while allowing for unrestricted movement

The 29-year-old Londoner looked sensational in a bright red plunging gown while Gwendoline, 37, went for a floor-sweeping purple gown for the event at the historic Royal Opera House in Covent Garden

But on petite me, the 22 length of a small looks longer

A softly flared skirt gives it movement, and hidden side pockets keep things effortlessly functional