This print is closely based on this c. 1795 robe in the collection of the V&A (T.121-1992). The original design is block printed Indian chintz.
Here's a hand-painted chinese silk polonaise from the Met (1970.87a,b), and my fabric swatch based on the material:
This is a blue organic vine pattern, from a gown in the Kyoto Costume Institute (AC7621 92-34-2AB):
There are more in the new collection, all researched and as close to original fabric as I could get. Use the cottons for jackets and caracos, or entire robes and gowns. Also, if you would like to request a fabric or a specific color change to one that I have already designed, just e-mail me and I will work on it for you!