I collect vintage postcards by the turn-of-the-century German artist, Catharina Klein. An amazing artist who combined fruit and flowers in unusual combinations. This texture is called Catharina and is part of the Expressions watercolor texture collection.
I also used the Topaz Labs* Clarity and Detail filters on this.
* Topaz Labs Filters is an affiliate link. I get a small commission from any sales resulting from a click from this site (at no extra cost to you.) I really do love these filters. Nearly all of my own images use one of these filters. Thanks for supporting the site.