Eugenie's evening dress was designed by Zac Posen.
However, it has been suggested that Princess Eugenie wanted her sister to take care of their mother, the Duchess of York.
In full, President Trump tweeted: "Princess Eugenie of York was a truly handsome bride yesterday".
Princess Eugenie was certainly one of the most modern royal brides we've seen during her recent celebrations - blending her family's traditional custom with more unique details such as her fun fairground-themed Saturday reception and her very glamorous second wedding gown.
Princess Eugenie and Brooksbank asked Andrea Bocelli and the Royal Philharmonic Orchestra to perform at her special day.
The palace released four official portraits following the ceremony, including one of the happy couple sharing a kiss in the carriage used for their procession around the castle grounds after exchanging vows.More news: United States retailer Sears files for bankruptcy
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Model Kate Moss arrived with her daughter Lila Grace Moss Hack, whilst fellow models including Naomi Campbell, Cara and Poppy Delevingne, and Pixie Geldof were also in attendance at the event.
It's the first time since Sarah Ferguson has appeared in an official photograph since she and Eugenie's father, Prince Andrew the Duke of York split 22 years ago.
Just months ago, Meghan Markle Wednesday Prince Harryat St. George's Chapel on the grounds of Windsor Castle in a traditional and classy event that set the bar high for all weddings to come. According to the royal family, the choice of colour reflects the blush of an English rose, and Posen took his inspiration from the White Rose of York.
Princess Eugenie also donned diamond and emerald drop ear-rings which are a Wedding gift from the Groom, as well as satin peep-toe heels by Charlotte Olympia.
British photographer Mr Bramall said it was "an honour and a privilege" to be invited to photograph the couple.