>>10922749You didn't specify which part of Europe. My experience is mostly with central and eastern parts - meaning mostly Germany, Poland, Czechia. Benelux should be similar more or less.
>Curtains You mean like oldschool thick victorian curtains that block all light? These would be possible to order from local seamstress - it's literally some material of your choice plus some decorative trim.
For semi old feel of opaque curtains try looking for jacquard curtains.
For lace curtains there is for sure a truckload of for example Polish producers (google "firanki") with decent prices for good quality.
>jewellery box> a way to store my bigger accessoriesI think almost everything in that resort is reselling stuff from China. Occasionally some stuff made in India could be found in TK Maxx. Maybe there are some local producers like for example this Irish pewter stuff producer https://mullingarpewter.com/collections/jewellery-accessories
Maybe some local carpentry related workshops could also be of some help if there are local traditions.
> rugs> beddingVisits in shops with home related stuff and in TK Maxx.
Also learning to do crochet stuff helps.
> art (not digital)Local art galleries? More art oriented cities have plenty of them. Paintings, sculptures. Think for a moment where in your country there is the biggest amount of art schools per citizen - there should be dozens of galleries. It could be pricey option but other than that you are left with obvious places like internet and antique stores plus flea markets.
BTW any of your furniture finds been particularly interesting?