The Look:
The newest trend in nail art: negative space (or in other words, the space surrounding a design). This negative space nail art with a double French tip design was created to go with the island vibe of Sophie Theallet's spring/summer 2015 collection.

The Technique:
Essie manicurist Julie Kandalec prepped nails with a base coat before applying Essie Nail Polish in Fiji (the lighter shade of the two) in an arc at the tip of the nails. (You can apply the polish in a wider band than it appears; another color will be painted over it.) To clean up any errors, use an angled eyeliner brush to clean along your arc. Next, Kandalec applied two coats of Turquoise and Caicos in an arc at the very tip of the nail, going over the Fiji polish. The look was finished with Essie First Base Base Coat , followed by Essie Good to Go Top Coat to cap the edges.

The Look:
The nails at Rebecca Minkoff's New York Fashion week runway show were pure artistry in a lightwashed messy-on-purpose way that fashion experts pull off so well.

The Technique:
The true technique here -- don't be afraid if it doesn't look perfect. Essie manicurist Michelle Saunders started by applying Essie Nail Polish in Blanc for a bright base. Next, beginning at the nail bed, apply one coat of Essie's Bikini So Teeny to half of the nail. On the other half of the nail, apply one coat of Turquoise and Caicos (clearly a must-have shade for spring if you don't already have the cult favorite). Allow the two shades to overlap each other slightly. Then dip a striping brush in the shade Lollipop and draw a thin horizontal line between the two shades. Note: this needs to be done when the polish is still wet to get that bleeding color look.) Finally, blend Essie Good to Go Top Coat over the polishes, sweeping the brush toward the tip of your nail.

The Look:
The pastel nails at Charlotte Ronson's spring/summer show alternated every other nail from a half moon manicure to an extended French tip manicure, leaving the rest of the nail with negative space.

The Technique:
OPI nail artist Miss Pop used OPI Base Coat, followed by OPI Nail Lacquer in That's Hula-rious! (out in February 2015 as part of the brand's spring/summer collection). Until the new shade comes out, try OPI polish in Gargantuan Green Grapes. Editor's tip: If you've never done a half moon manicure before, it can be tricky to keep the edges neat. A fine-tipped paintbrush can be easier to use than the brush nail polish comes with. Finish with OPI Top Coat for a shiny finish.

The Look:
The blue and white gradient nails at Nanette Lepore were inspired by the way foamy sea water washes up on shore and are, surprisingly, easy to recreate.

The Technique:
This nail art look requires two shades of polish, a top and base coat and your secret weapon -- a makeup sponge. Kandalec started by applying Essie First Base Base Coat, followed by two coats of Essie Nail Polish in Mint Candy Apple. Once your first shade has dried, dip the makeup sponge in Essie's Blanc polish and blot the sponge lightly over the tip of your nail. Apply the Blanc polish lighter and lighter as you blot toward the base of your nail.

The Look:
Okay, technically this isn't nail art -- just a really pretty color we have to have. But it was one of our Fashion Week favorites.

The Technique:
The deep glossy nails at Karen Walker's fashion show were created using Jin Soon Power Coat Strengthening Base and a yet-to-be-named color from Jin Soon's spring 2015 collection. We're counting down the days until it's released, but in the mean time you can try Jin Soon Nail Polish in Heirloom, a chrome finish deep turquoise shade.