Whistles white lace dress

Gorgeous Whistles dress as seen on Pippa Middleton. I love this dress but it just isn’t flattering on me. I purchased this preloved and can’t find the size tag. I’m usually a 0P in Ann Taylor. I had the dress taken in but it looks like it can taken out if you wanted to( photos 6 &7). Some stains on the inside lining of the dress; have not tried to clean them out and not visible when dress is worn. Armpit to armpit about 16 in. Waist 13.5 inch hips about 17 inches.