Cropped white puff sleeve top

Super cute vintage white top reworked as a crop top. got this off of a boutique ASOS shop from the UK. No size is listed on this top but due to the elastic on the arm and bottom I would say this would fit a S to smaller end L at the most. Probably would work best with A-C cup boobs as it is slightly sheer white and you would probably need space to wear a bra underneath! There are inner ties to tighten the ruching on the front.