Vintage cottagecore white cropped blouse

Gorgeous vintage cottagecore style cropped blouse. Puffed sleeves, buttons in a front. In excellent vintage condition. 

No label with a size or material. I think it’s cotton. Blouse is approximately size UK 12/14 but please check the measurements:

-armpit to armpit 51cm/20”

-length (shoulder to bottom) 36cm/14”