There is rarely, if ever, enough excess fabric left hidden within the tight, heavily reinforced, boned seams to significantly expand the garment without utterly ruining its structural integrity and aesthetic line
Tailoring, Posture, and Body Language You can purchase the most exquisitely tailored, deeply structured, intricately draped, perfectly colored designer gown in the world, equipped with premium shapewear, but if your posture is poor, the dress simply cannot do its intended job
Closed-toe, covered shoes in neutral or dark hues are the general recommendation
At this point in your life, you have pretty much determined your fashion sense and you know what suits your frame