In 1892 Manuel Orazi moved from Rome to Paris. It wasn't long before he became well respected as an Art Nouveau poster artist. But Orazi was also gaining inspiration from other sources. By 1900 he started incorporating elements of the Vienna Secessionists and adding the expressionist touches of the Symbolists. One of his most famous posters, one of
Loie Fuller has the traces of his various inspirations. From the flat gold details of Klimt or the body swirling into the nothingness of Munch. By the time he was tapped by director Jacques Feyder to be the visual artist for the movie adaptation L'Atlantide, Orazi had created a style that was derivative of so many other styles it had become something quite unique all together.
Orazi's main task in designing the costumes for the film was for the character Antinea. Antinea needed to be expressive of her ancient history. Orazi looked to the Egyptian and Nordic, combining them with "modern" design.
Actress Stacia Napierkowska as Antinea ( Napierkowska previously starred in Les Vampires)
(click for larger image) This costume is decorated with an applique of seven characters from Egyptian mythology. Above the divinities, silver plated decorations are painted on the textile, while at their feet, there is the design of seven heads of falcons. Though Egyptian inspired the costume owes much to the design of the Viennese school.
(click for larger image)
Applique detail
transparent lamé, velvet, gilded and silver plated fabrics.
Antinea had several costume changes throughout the film, from this amazing cape and silk dress

to her battle helm
painted background also by Orazi 
Tomorrow I'll discuss some of the set design, feel free to comment or correct me.
References:
http://moma.org
http://www.bifi.fr