George Barbier (1882 – 1932) was a French illustrator, whose work is in the art deco style and was produced while art deco was very much en vogue. Barbier made a living in illustration as well as in theatre and costume design; he died at the height of his popularity. This work, L’hiver (Winter), is less stylistic than some of his other works but, if you squint, you can see a little Alphonse Mucha in there, and possibly some Maxfield Parrish in the landscape in the background.
This card was produced in and mailed from Singapore, which I had thought was in Southeast Asia but which might actually be somewhere in France. Thanks Ammy!