A great way to add some balance to your appearance is to perk up your clothing with padding. Be it through a padded bra or modest shoulder pads, the extra lift will help your clothing wear in a more flattering way. These days, shoulder pads are more modest with a natural-looking, rounded shape.
Slip on a pair of shoulder pads underneath your clothing and see what a different it makes in how your clothing looks on your shapely figure. The top half of your body will likely look like it better matches your lower half, which will definitely help dissolve some of your clothing dilemmas.