This looks like a comfy soft blanket strewn on the bay window set, ready for pulling up over your legs. Grab a pillow and settle in for a nap when the garden is finished. What it is though is an animatable firm metal sculpture inside stiffened wool, sewn into a draped shape, secured to the set with hot glue.
I took a perfectly good mohair blanket and cut out four squares of it and strips of fringe to finish. I used several layers of painted foil sandwiched inside two layers of the wool. The green color on the original blanket would never do as the cottage will contain colors in the warm family only. I used Brazilwood and yellow dye to stain and change the colors. I saturated the whole assembly with a lot of matte medium to tame the fringe so it won't move too easily during filming.
I also finished the table skirt on the kitchen table. I ended up trying to add some creative life to the cheap fabric I used by hand-painting dots. It made it only slightly better so I'm not loving it. But I think it's a small enough factor to not need more energy put into it. Miniature pleats on the skirt's panels were fixed with hot glue and wired at the bottom to make them animatable too.