I am just under average height and find that some dresses- the kind that have a fitted waist- tend to be too big between the shoulder and the waist.
As I am petite I like and suit what I would call a fitted shift dress style.
The way to fix the sizing would be to have the shoulders taken up by an inch or so IYSWIM. Reducing the height of the "bodice" to be precise!
I wouldn't do this myself on a tailored dress, as it would mean unpicking the lining perhaps- but certainly unpicking the seam nearest the neck line to get to the shoulder seam, and it's very hard to get it looking neat again.
Has anyone ever paid anyone to do this- if so, what kind of person did you find- a dry cleaning/alteration shop or an expert tailoress?