Let it be known: you really can't go wrong with Karlie Kloss — clad in a leopard-print bikini top to start, and a gold embellished blue ball gown to finish — as your show opener and closer. With that, Anna Sui set the tone, full-force ahead, for a rock 'n' roll-meets-party down by the Seine kind of Spring. We're talking vintage-inspired slipdresses, lace overlays, zipper-enhanced jumpsuits, '90s plaid, and fierce minidresses paired with ripped fishnet tights — a veritable mashup of everything you would ever want to find at the back of your mom's closet and "borrow" as your own. Get your first look at Anna Sui's Spring '13 collection here; then, be sure to come back soon for our full review.

Check out all the pictures from Marchesa's Spring 2013 collection, and come back soon for our full review. 

Check out all the pictures from Reed Krakoff's Spring 2013 collection, and come back soon for our full review. 

Milly's girl got a techy twist — bold photo prints, citron tweed, and clear-goggle-inspired specs distinguished Michelle Smith's set for Spring and set the tone for the season's coolest kind of dress code. It's a sexier spin than we're used to seeing from Milly, rife with shocks of color, body-conscious scuba-style dresses, and high-wattage metallics. Still, when Smith takes on tighter silhouettes, like her pencil skirts and minidresses, she counters with hooded toppers (some finished in fresh tweeds) or an anorak layered up over top. At first glance, it's just flat-out cool, but you quickly see how Smith's smart contrasts are repositioning terms like "sexy" and "sporty." She crafts a track jacket in pearlized organza, for starters, and takes on girlier full skirts and even the pencil skirt with a kind of technical precision that makes us stop to consider the details at work: python-embossed textures, fluid trousers, and a buzz-worthy palette. It's the kind of collection that will get a girl noticed — for all the right reasons.

• Trends: Athletic-inspired details, mesh, tweed, neon, colorblocking, photo prints, and tropical floral prints.
• Colors: White, black, pink citron, blue, turquoise, and silver.
• Key Piece: If you're not one for body-con silhouettes, then look to Milly's printed halter and citron trousers.
• Accessories: Clear, goggle-like specs; Manolo Blahnik cutout heels; pointed-toe, ankle-strap pumps; and sleek, zippered clutches.
• Who Should Wear It: Young Hollywood types who like their sexy looks with a sporty edge, like Jessica Alba, Jamie Chung, and Jordana Brewster.

Check out all the pictures from the Holmes & Yang Spring 2013 collection, and come back soon for our full review. 

Finding inspiration in the Kawachi Fuji gardens in Japan, Mendel's set is sophisticated to start — with clean lines, luxe details, and even mink coming down the Spring runway — then quickly evolves into something color-rich and definitively feminine. The onset is an exercise in more modern construction and a pale palette: soft pinks and greens. Then, with a sequence of light-as-air, diaphanous, pleated dresses, Mendel hints at what's to come. The entirety of the show seems to literally blossom right there on the runway. From tailored short sets and leather skirts to full-bodied prints on suiting, sheaths, and an intensely pretty violet pleated gown, the transformation is beautiful to watch (and obviously even more so to wear). As the show neared its finale, each brightly hued confection seemed lovelier than the next, until finally the collection closed out with a bold, orange, pleated gown with nods to the designer's botanical references, made only more literal with floral appliqués. This is why we're used to seeing Mendel on the red carpet and hearing A-listers credit his label at nearly every high-profile awards show: J. Mendel is masterful at crafting clothes that make women feel and look insanely gorgeous — and here's the proof.

• Trends: Brights, slits, pleats, cutouts, fur, leather, and floral print.
• Colors: Violet, navy, coral, peach, pink, and white.
• Key Piece: The diaphanous, sheer-pleated dresses were stunning.
• Accessories: Ankle-strap sandals and pointed-toe pumps.
• Who Should Wear It: We see beauty Natalie Portman in the violet, pleated, floor-length gown.

Mary-Kate and Ashley Olsen provided much-needed respite from the usual hectic scene during NYFW, presenting their Elizabeth and James Spring '13 collection in an intimate, serene setting at Industria Studios. The vibe was cool and relaxed, just like the collection itself, which showed off the sisters' penchant for designing tailored pieces with an effortless edge and a much bigger jewelry assortment featuring exotic beaded bracelets, wooden bangles, and covetable eyewear. Trenches were made in crisp linen, taffeta trousers emanated a soft sheen, and washed silk tops were draped just perfectly so. While the majority of the separates were bare of any prints, a crop of beautifully tailored jacquard printed blazers and slim-fit trousers added an exotic element to the line. We especially loved the worldly, luxe feel of the orchid-hued blazer paired with cropped wide-leg taffeta trousers. And every look was paired with strappy, multicolored flats, proving that you don't need to be in heels to look sleek and sophisticated.

• Trends: Jacquard prints, loose trousers, shiny finishes.
• Colors: White, magenta, light peach, black, copper, coral, blue.
• Key Piece: The orchid jacquard printed blazer, magenta taffeta pants, and metallic sandals were a perfect pairing.
• Accessories: Multicolored flat sandals, oversized tribal earrings, cat-eye sunglasses, large wooden stacked bangles.
• Who Should Wear It: These effortlessly luxe pieces fit the personality of girls like Kirsten Dunst, Anne Hathaway, and, of course, their sister Elizabeth Olsen.