Braids have been going strong at Fashion Week for more than a few seasons now, but come spring, the trend will be ropier and more intricate than ever before. Clockwise from top left: At Marissa Webb, Tresemmé celebrity stylist Jeanie Syfu created a cool braided pompadour that featured an inside-out French braid. At Suno, hairstylist Odile Gilbert used Ké'rastase products to hold exaggerated fishtail braids in place. At Mara Hoffman, hairstylist Nick Irwin started with Catwalk by Tigi Transforming Dry Shampoo to give hair a matte texture. Then, he braided about half the hair, before wrapping the remaining sections around the braid for a "destroyed desert braid" effect. And at Donna Karan, hairstylist Eugene Souleiman needed an extra set of hands and Wella Stay Firm Finishing Spray to get the look -- he compared the cross-stitched braids to braiding keychains.

The sleek ponytail trend doesn't require much explanation. If you've got shine serum and an elastic, you're halfway there. While there were dozens of ponytails on the runways, some of our favorites included Opening Ceremony, Jason Wu, Alexander Wang and J. Mendel.

Nail art isn't going anywhere -- whether it's at Fashion Week or IRL -- but the trends for spring are slightly toned down. Nearly identical clean white manicures with horizontal lines turned up at Erin Fetherston (top right) and Kate Spade (bottom left). Manicurist Gina Edwards used Kiss Products to create a gold stripe at Fetherston and Deborah Lippmann used polish from her own line to create a sharp black line at Kate Spade. Meanwhile, at Tibi, manicurist Jin Soon Choi drew dots in a line to look like stitches. And at Prabal Gurung, Choi used Sally Hansen polish (part of a collaboration with the designer) to draw horizontal stripes on a blank background.

Negative space manicures layer color or designs over a clear background. Even if you're staunchly anti-nail art, you might be able to get behind this trend. Plus, if you opt for color at the tips like the look from Sophie Theallet (bottom left), you can't tell when your nails begin to grow in. And if you choose color at the half moon like the look from Delpozo (top left) or Chris Gelinas (bottom right), it's impossible to detect chips. At Misha Nonoo (top right), Sally Hansen celebrity manicurist Tracylee used vertical strips of tape to create negative space down the middle of a matte white mani.

Watercolor nail art may seem complicated, but you can easily get the look with a sponge and the ability to completely disregard perfectionism -- messy is good. At Tracy Reese (top left), Sally Hansen celebrity manicurist Tracylee used three custom shades to create a pebble-like effect. She painted the nails, and then wiped most of it off with a brush. Meanwhile, at Opening Ceremony (top right), CND manicurists dropped acetone remover on top of still-wet polish to give it a marbleized look. At Nanette Lepore (bottom right), manicurist Julie Kandalec used Essie Mint Candy Apple and dabbed the color with a sponge. And at Rebecca Minkoff, manicurist Michelle Saunders applied a top coat while the Essie colors underneath were still wet. This dragged and blended the shades, making it look like a bleeding watercolor.