Spring 2012 London Fashion Week

>> New York, London, Milan, and Paris — all the best trends, from all the Spring 2012 collections. Mid-century silhouettes, sherbet hues, and a dash of deco thrown in for good measure —plus more. Click through for all the key looks of the season, here in the slideshow.

>> Five jam-packed show days, condensed into 26 eye-catching looks. From Erdem's floral-on-floral to Giles's perfect silver sheath — the best of the best from Spring 2012 London Fashion Week, in the slideshow.

>> From polka-dot calf hair cross-bodies to lizard print carry-alls, these London Fashion Week beauties aren't your everyday bags. Raffia — which keeps popping up this season — worked its way into clutches at Burberry and Marios Schwab. And what did Christopher Kane follow up his Fall 2011 liquid-filled PVC clutch with for Spring? See all in the slideshow.

>> The clear plastic elements that first popped up on a number of shoes in New York have carried on through London, getting studded at Mary Katrantzou, dyed highlighter yellow at Matthew Williamson, and sculpted into booties at Richard Nicoll. Check these shoes out — plus J.W. Anderson's feather-tufted heels, and more — in the slideshow.

>> London Fashion Week street style didn't disappoint this season, bringing its fair share of quirk. The Christopher Kane gorilla dress made an appearance, as did Kate Moss in a Canadian tuxedo. Trenches of every variety — tan, navy, and black or cherry red leather — popped up, as did a small selection of supermodels. See all their looks — plus more — in the slideshow.

It was an early 9 a.m. showing during London Fashion Week, but we're sure no one was dozing off during Mary Katrantzou's Spring runway show. The season's bold prints trend couldn't come at a more fitting time for the designer known for her signature bold graphic patterns. The collection, based off of Katrantzou's nature-versus-nurture theme, was exemplified through bold floral, bird, and coral reef prints splashed on structural one-shoulder and asymmetric dresses made in modern high-tech fabrics. Printed pants and colorblocked blazers provided even more partywear inspiration; as did the bright lipstick and metallic shoes provided by Christian Louboutin. We can't wait to see which celebs will wear her designs on the red carpet. More details from the vibrant collection below.

• Trends: structural print dresses, asymmetrical hemlines, printed trousers.
• Colors: red, orange, blue, green, yellow.
• Key Look: we loved all of the short printed dresses.
• Accessories: a colorful array of metallic peep-toe sandals by Christian Louboutin.
• Who Would Wear It: girls who crave unique prints with a twist like Keira Knightley and Diane Kruger.

We first saw Roksanda Ilincic's collection as a part of Topshop's New Generation Initiative in 2005 — cut to Spring 2012 fashion week, and the designer is showcasing the kind of modern separates and dresses with a hint of the avant-garde sensibility she became known for. The collection hits on all the wardrobe essentials — delivering sheath dresses, maxis, blouses, and trousers — all the makeup for a perfectly outfitted closet but with whimsical edge. Hot pink makes its way onto a day dress, turquoise brightens up a top and pants, and floral and wide windowpane prints make their way across the collection. Then, there's the play with volume and proportion, like slim pencil-skirted dresses with bell-sleeved tops; dresses are either straight up or down or full and flared. You can sense the sophistication and the playfulness that have made both Michelle Obama and Kate Middleton fans of Roksanda. Like the balance between the model sporting the pink locks and the perfectly sensible little neutral dress she's wearing — there's a just a touch of fantasy underlying the impeccably chic execution.

• Trends: Colorblocking, maxi silhouettes, volume.
• Colors: Pink, blue, turquoise, gray, nude, gold yellow, florals.
• Key Look: The hot pink bell-sleeved sheath dress.
• Accessories: Knit headbands and beanies, bright ankle-strap heels.
• Who Would Wear It: Girls with an eye for sophisticated cuts and statement color; fans like Michelle Obama and Kate Middleton, but we bet Kate Bosworth could rock that hot pink dress .