Vanity Fair Oscar Party: Best and worst looks celebrities wore

Taylor, who was nominated for best supporting actress for "One Battle After Another," donned a white Chanel gown for the after-party.

The front of the slip-style, floor-length dress was simple, with a V-neckline and ruched bodice, while the plunging back was anything but. The straps were adorned with gold thread, and stars were embroidered on each strap. It was a celebratory and sexy look.

She hit the carpet in a black, sleeveless romper and semi-sheer tights. The Dior piece had a cowl neckline, a small mesh cutout across the chest, and extra-short shorts.

It was so simple that it didn't match the actor's standout Tiffany & Co. diamond necklace or her bow-shaped hat.

The "Sinners" star celebrated winning his first Oscar in a brown suit, which included a double-breasted jacket and wide-legged trousers.

Three brooches on his lapel and brown sunglasses made the outfit pop.

Her golden Stella McCartney gown, which was sleeveless and form-fitting, looked glamorous on the actor.

Unfortunately, it was lined with thick brown faux fur along its hem, which contrasted with the glimmering material and distracted from the overall look.

Jenner's Chanel gown hugged her figure. It had a scooped neckline and spaghetti straps, and sparkly embellishments covered the dress from head to toe. Larger embellishments on the neckline and waistline added even more drama.

She paired the gown with Tiffany & Co. jewelry and Gianvito Rossi shoes. It was simultaneously effortless and stylish.

The supermodel arrived at the Vanity Fair party wearing a yellow gown designed by Chrome Hearts. It had a plunging halter neckline and hip-high slits, all covered in embroidered mesh.

The latter detailing didn't work for her. A classic yellow gown without the slits and mesh would have looked more streamlined and elegant.

Tamara Ralph designed Ashley's glittering, floor-length gown. The standout feature of the form-fitting gown was its bejeweled, asymmetrical neckline, seemingly inspired by a peacock feather.

Aquazzura shoes and Buccellati jewelry completed Ashley's look.

Her Gucci look, straight off the runway, featured a high neckline, long sleeves, a floor-length skirt, and all-over sparkles.

On another celebrity, it might have looked striking. On Kardashian, though, it was far too simple. It won't be remembered among her best Oscar-night outfits.

Goth's black Dior gown looked simple from the front, with an arched, strapless neckline and tea-length skirt.

However, the back revealed a short, white skirt made of layers of embroidered, fluffy tulle for a fashion-forward flair.

Many celebrities wore white at the Oscars and the Vanity Fair party. So technically, Vergara was right on trend with her white Zuhair Murad halter gown.

The details of her dress, though, looked more fitting for a bride than a red-carpet star. It had all-over crystals, a diamond-shaped cutout, and flowing white fabric that hung from her shoulders, resembling a veil.

Harris Reed designed the avant-garde gown for the "Marty Supreme" actor.

Voluminous, arched sleeves with tassels sat on her shoulders, giving way to a black bodice with a large cutout in the center of her chest. The rest of the bodice was leopard print, while the skirt was made of layers of multicolored fabric trimmed with the same tassels that sat on her shoulders.

The contrasting elements felt cohesive on A'Zion. She paired the bold dress with Pandora jewelry.

Rita Ora is known for her bold fashion, which usually works for her. At the Vanity Fair party, though, it was tough to focus on a single element of her Tamara Ralph outfit.

She wore a floral embroidered gown that was sheer from her shoulders to her hips. That's where a satin skirt wrapped around her legs and extended into a long train. She also wore a massive feathered hat.

Ditching the latter accessory might have let the dramatic gown shine more.

The "Heated Rivalry" stars both wore sheer, black shirts to the Vanity Fair Oscar party, walking the red carpet together in their matching looks.

Balenciaga designed Williams' sleeveless, high-neck shirt, which billowed slightly and formed a floor-length train. He paired the bold top with black trousers and shoes.

Storrie's Saint Laurent top was more form-fitting, with a high neckline and long sleeves. He also wore black trousers and shoes, but he carried a brown stole and wore a bold Tiffany & Co. choker for added drama.

He wore a gray suit comprising tailored trousers, a white button-up shirt, and a blazer with satin lapels and coattails. In place of a tie, he wore a silver neck scarf with fringe and a small bow.

Though the outfit was eye-catching, it looked a bit like a historical costume. A cropped jacket and a flat neck scarf could have made the outfit sharper.

Designed by Celia Kritharioti, the halter neckline of Union's silver gown plunged to nearly her navel, while the back was completely open. She played up the sparkles in the gown's fabric with Tiffany & Co. jewelry, including a bold pendant that sat on her chest.

Union looked glamorous and sexy for Vanity Fair's event.

She arrived at the party in a black Alexander McQueen design. It had a halter top with a deep V-neckline, shining fabric that hugged her body, and a feathered skirt and train.

Though the dark color looked strong on Jenner, its design was a bit too simple.

It also had an odd triangular cutout at the hip, which made the dress appear unfinished.

Domingo's Jacquemus suit put a fun twist on a pinstripe look, as the stripes were silver instead of white. His collar was popped on one side and folded over on the other, offering an asymmetrical look.

Domingo brought even more glamour to his outfit with a brooch and jewelry from Boucheron.

Palmer walked the red carpet in a purple, velvet Gucci set. The long-sleeve, high-neck top was actually a bodysuit, and the low-waisted, floor-length skirt revealed peeks at Palmer's hips.

The outfit had some cool elements, but it ended up looking pretty one-note on Palmer because of the heavy fabric. A more interesting fabric or a different neckline may have brought more dimension to the look.

The longtime couple walked the Vanity Fair red carpet together in beautiful black-and-white ensembles.

Waterhouse's two-piece from Tamara Ralph featured a backless, metallic top that looked like peacock feathers curving around her body. The high-waisted skirt was fitted, and a floor-length, sheer cape trailed behind Waterhouse. She wore Stuart Weitzman shoes and Messika jewelry.

Pattinson's tuxedo suit was pretty simple, but he made it fun by wearing a brooch on his neck instead of a tie.

Louis Vuitton designed the Olympic champion's black dress, which was adorned with gray and black textured embellishments.

The dress was cool, and it was fun to see Liu wear it with black tights and pointed-toe heels. However, the garment's high neckline and boxy sleeves looked ill-fitting on Liu's small frame. A dress with a softer shape would have worked better for Liu.

Louis Vuitton designed Mosaku's lilac ensemble for the Vanity Fair party.

The strapless dress was embroidered with a floral pattern, which she paired with a floor-length train made of layers of purple fabric that looked like flower petals.

Mosaku was nominated for best supporting actress for "Sinners" at the Oscars.

Sánchez Bezos went vintage for the Vanity Fair party, wearing a black John Galliano gown from 1995. The strapless piece had a V-shaped peplum on the waistline, and the slit in the center of the floor-length skirt mirrored its shape.

She leaned into the all-black look with sheer, black tights and Christian Louboutin heels. She also added jewelry by Lorraine Schwartz and Lisa Klein to the ensemble.

While Sánchez Bezos was among the best-dressed of the night, her husband was among the worst. Bezos' black tuxedo was fine for the occasion, but there wasn't anything interesting about it.