A black cut-out party dress creates an open area near the chest beneath a higher dark section. Longer sleeves extend at the sides, and the short skirt stays comparatively continuous. A small dark bag is held beside the body. The reference is useful for the relationship between coverage and opening at the top, without confirming internal support, fibre or how the sleeves fit beneath another garment.
Try a real outer layer over a similar dress instead of holding it nearby. Check whether its collar covers the line you wanted visible and whether the sleeve sections fit as you prefer. Reach forward, greet someone and take the bag in your usual hand. A geometric appearance needs to work during these ordinary actions as well as in a posed front view.
Compare the neckline without a necklace first, then add one if you want to test another line. Decide whether you prefer the existing opening to lead. If another construction works better, keep the dark geometric idea and compare a different actual dress. You do not need to reproduce every pictured detail to use the styling route.