Try a jacket over a vest over a shirt–got it? Keep all layers relatively light-shirt and vest should be fitted, jacket a little unstructured or roomy. You don’t want to feel too constricted. Create a waist by belting the vest, or wearing one that hits at your waist–we don’t want to look bulky, just interesting! Your bottom half should be slim fitting pants or a skirt.
Another option is to wear a long vest over a short jacket–or vice versa! All of these looks are great for expanding your options!