Looks to be quite old: it is a portrait of a young Thai girl apparently done in pastel.
It is under glass and therefore very difficult to photograph. I did not want fashion to risk taking in out of the frame so I apologize for the quality of the photos. They are not great photos but they do show what a lovely pastel drawing it is.
It is one of a kind and quite unique
Here is a video of our Arts and Antiques Gallery located in St George Utah where we have many more items than listed here online.
Many of the items in our gallery are simply too big to ship for free but if you see something in the video of interest let me know and I can send you detailed information about it. Also feel free to ask if we may have something that you are looking for.
https://www.youtube.com/watch?v=UhTdMjhbfQ0
Product code: Thai Girl fashion - Pastel