What’s a 16-arlington collection without a flurry of its hallmark feathers? Well, it’s not the work of the London label, that’s for sure. Plucked from its AW21 line-up, the Odessa top fits the bill to a tee; it’s cut from smooth crepe to a form-fitting silhouette with a high neck and cut-out at the chest. The real star of the show, though, is the plume of ostrich feathers encircling each cuff. Now just to get through dinner without leaving any in the sharing starter…