Art Nouveau

 Here you see the tendril like quality that almost makes the furniture feel more alive, plus the incorporation of wood and nature through the color scheme. 

https://essenziale-hd.com/2019/09/18/art-nouveau-furniture-collection-in-musee-dorsay/

This dress feels like it belongs in the period because of the naturistic quality of it, with the tendril yet flower petal like quality of the skirt.

Nicolas Jebran Spring 2015 Couture Collection

The tendril like railings on the stairs, plus seen on the walls and the sloped curve of the house, create a very art nouveau feeling.

https://www.decoist.com/2014-04-15/unique-creative-staircase-designs/?chrome=1