The 2023 Miss Universe pageant's national costume competition featured a range of creative and eye-catching outfits that paid homage to various countries and themes. Miss Ecuador's costume paid tribute to the Ecuadorian railway system, complete with a steam-producing chimney and a train designed to look like railway tracks. Miss Great Britain wore a costume inspired by the Oxford English Dictionary, while Miss Denmark's costume represented a mythical ocean dragon and the spirit of Viking sailors. Miss Brazil's costume featured blue macaw parrots to highlight the species' endangered status. Miss El Salvador received rapturous applause for her volcanic gown, which lit up to represent an eruption of hot lava. The competition is taking place in San Salvador, El Salvador, with 84 countries represented. This year's competition also includes the first-ever married contestants and two transgender women representing the Netherlands and Portugal. The winner of the best national costume will be announced on Saturday night, along with the new Miss Universe.