Hi! I'm new here. This is my first post.

I ordered this dress in size 00 and it is definitely too big in the shoulders and waist. I don't have much experience with alterations other than very basic hemming, so I really have no idea if it could be altered into the shape I want it to be, but I think it would be pretty involved. There is quite a bit of extra fabric around the waist, so I am going to return it. I will try to post a pic later.
I don't know my exact measurements, but to give you an idea, I am 5'4", 105 lbs, bust 30B/C (depending on the bra). I wear size 24 in most designer label jeans. I have bigger hips/butt than a lot of petite girls, I think. I can usually wear a regular size 00 skirt from J.Crew if I hem it, but a size 0P fits better. My issue is always that dresses/blazers/blouses are too wide through the torso.
Hope this helps!