Black evening party dress

Sleeveless over the head or step in stretchy Black Evening mini dress with goldish/bronze flexible strapes PLEASE READ SIZE DESCRIPTION Draped blouson top of dress Size 16 ( had it altered down to approx 12-14 size Arm pit to armpit approx 18”-19” Waist approx 21 Skirt approx 17”-18” Length . Top of strap to bottom skirt 34”