Our PicksBest & Worst Dressed of the WeekThe Fashion Beast Team02.28.14Our PicksBest & Worst Dressed of the WeekLupita Nyong'o is breathtaking in copper, Mira Duma goes oversize to Milan, and Stacy Keibler channels her inner-Pink Panther. Plus, more best and worst dressed.The Fashion Beast Team02.28.14 5:18 PM ETKevin Winter/Getty; Angela Weiss/Getty; Imeh Akpanudosen/Getty; Venturelli/WireImage Lupita Nyong'o is breathtaking in copper Lanvin, Mira Duma opts for an oversized suit at Milan Fashion Week, and Stacy Keibler channels her inner Pink Panther. Plus, more best and worst dressed of the week. Kevin Winter/Getty,Kevin WinterBest Dressed: Lupita Nyong'oNyong'o sports a strapless copper lamé dress (similar to the Givenchy number she wore last week) by Lanvin, featuring an exposed black zipper up the front. To finish the look, the actress chose Sergio Rossi heels, a Solange Azagury-Partridge ring, and Janis Savitt earrings while attending the L.A. premiere of Non-Stop on February 24. Vittorio Zunino Celotto/Getty,Vittorio Zunino CelottoBest Dressed: Miroslava DumaFashion editor Miroslava Duma attends the Salvatore Ferragamo Fall/Winter 2014 show on February 23 wearing an oversized white pinstriped blazer and coordinating culottes over a semi-sheer-and-leather nude top by the show's designer. Angela Weiss/Getty,Angela WeissBest Dressed: Kate MaraFor the Vanity Fair and Fiat 'Young Hollywood' party on February 25, actress Kate Mara dons a forest green and light pink, high-low cocktail dress by Christian Dior, a Prada clutch, and Brian Atwood heels. Imeh Akpanudosen/Getty,Imeh AkpanudosenBest Dressed: Naomi WattsActress Naomi Watts stuns at the BVLGARI 'Decades of Glamour' Oscar Party on February 25 in a strapless black dress lined with pink-and-red detailing from Altuzarra's Fall/Winter 2014 collection. The movie star accessorizes the look with BVLGARI jewels. Neilson Barnard/Getty ,Neilson BarnardBest Dressed: Saoirse RonanFor the New York premiere of The Grand Budapest Hotel on February 26, actress Saoirse Ronan sports a black-and-white, high-neck, embellished frock by Proenza Schouler and black strappy heels. Venturelli/WireImage,VenturelliWorst Dressed: Leigh LezarkDJ and model Leigh Lezark looks like a furry mess at Milan Fashion Week's Fendi Fall/Winter 2014 show on February 20 in a black and white cut-out fur coat worn over a salmon-colored dress. Angela Weiss/Getty,Angela WeissWorst Dressed: Stacy KeiblerChanneling Pink Panther in a bubblegum-colored suit, Stacy Keibler attends the Vanity Fair and Fiat 'Young Hollywood' party on February 25.