Mrs Beckham made a post-birth comeback with her eponymous collection, filling the catwalk with her trademark figure-hugging dress silhouette. But it's this plum-hued coat we have fallen for. It hangs oh so perfectly, and what's that swinging from Joan Small's dainty hand, I hear you ask? That, friends, is the new 'Harper' bag, a thing of beauty indeed and named after Victoria's new baby girl. Photograph: Dan and Corina Lecca
Monochrome never fails to make an impact and at 3.1 Philip Lim it dominated the catwalk. A strong collection representing strong women, the show opened with a cape but went on to reveal sharp tailoring, deconstructed knitwear and the most desirable coats for next season. We love that the metallic collar detail here adds a tough edge to a soft jumper. By the way, the pointed shoe trend is here to stay. Photograph: PR
Is there anything those Olsen girls can't make look chic? Tempted as we were by their take on the bum bag, we've opted for this off-white ensemble as our look of the show for its elegant luxe feel and air of Katharine Hepburn. Bonus points for the flat sandals, we're so tired of towering platform heels. Photograph: PR
Slick sheens and lacquered finishes were the order of the day at Alexander Wang's fall show and, in a master stroke of fabric manipulation, even the knits were coated in a shiny gloss. With leather and luxurious details already looking like a big A/W12 trend, put our names down for this cocoon-shaped burgundy jumper and boozy leather over-the-knee boots. Photograph: Eduardo Munoz/Reuters
Derek Lam's fall girl had a decidedly 60s feel about her with the models sporting softly structured beehives, smoky eyes and neat, trimmed, pencil-shaped dresses. The addition of bright printed collars to doily-print dresses and shirts gave a tough 'modish' touch to a collection that was punctuated with chunky knits and long chiffon skirts. One of the week's best shows. Photograph: Victor Virgile/Gamma-Rapho via Getty Images
Preen is a firm favourite with the Observer fashion desk. Design duo Justin Thornton and Thea Bregazzi never disappoint, and this collection built on last season's digitally manipulated Virginia Woolf prints with new inspiration coming from illustrator and conservationist Beatrix Potter. The resulting print was a mix of botanical and butterfly prints panelled into dresses and creeping on to the neckline of sweaters. Beautiful. Photograph: Victor Virgile/Gamma-Rapho via Getty Images
Early trend klaxon! Following on from menswear shows, it cropped up on some key New York runways this week. Here, Michelle Obama favourite Jason Wu shows an elegant sculpted cape coat with inset lace panels. Full marks for making the kind of cape you can still hail a cab in. We like. Photograph: Justin Lane/EPA
Eveningwear makes good business sense for designers, and Oscar de la Renta always gives good red carpet. This season we will see Stella McCartney present an exclusive eveningwear collection during London fashion week and with the Oscars just around the corner, thoughts turn to who will be wearing what to pick up the big gongs. We'd like to see this splash of teal appliqué lace liven things up, but we'd lose the headband and fishnets and team with an elegant gold sandal instead. Photograph: Allison Joyce/Reuters
The Observer fashion team are always firmly behind a tonal, all-grey look and this offering from DKNY is no exception. From the differing sleeve length proportions to the contrasting textures, we wouldn't mind being the girl who is wearing this next autumn. Not at all. Photograph: Victor Virgile/Gamma-Rapho via Getty Images
To be honest, we weren't quite sure what to make of this Marc Jacobs collection. Oversized proportions aren't usually the easiest trend to wear (and especially when they are on your head) but one thing Marc Jacobs never fails to produce is a show-stopping dress and this fuchsia and red sequin confection is no exception. We like your wit, Marc. Not so sure about the shoes, though. Photograph: Carlo Allegri/Reuters
