The quiet olive-green party dress pairs a draped strapless upper edge, diagonal folds and a short hem with prominent black straps around the lower legs.
The more even green surface changes the outfit question. Instead of starting with dense round decoration, you can decide whether the bag, jewellery or shoes should supply the stronger accent. In this photograph the dark straps draw several lines around the lower legs. If that arrangement interests you, compare it with a simpler shoe pair and the same dress shape. This reveals what the footwear contributes to the look.
The bare shoulder line and folded upper edge create a different frame from the long sleeves of the green-blue reference. Look at your intended outer layer alongside them. It may cover part of the upper area before revealing it again when removed. Try both states if they belong to your evening.
The picture presents a possible quiet base rather than an automatically better or more practical choice. Your intended focus matters. A complete wearing test, with your belongings inside the bag, tells you more than assuming that every less reflective surface is straightforward to use.