A dark blue one-shoulder dress combines a long narrow silhouette with a large flower-shaped detail on the covered shoulder. A few diagonal folds cross the upper section and the skirt extends towards the floor. Reflective areas change across its surface without identifying a particular composition. The pronounced shoulder accent is a useful starting point for a styling comparison because it already gives the outfit a clear direction before additional accessories are introduced.
Try a similar design with your hair arranged to reveal the flower, then compare your preferred loose hairstyle. Notice contact between hair, earrings and the shoulder detail. Hold the intended outer layer alongside it, then actually put that layer on. If it rests on the decoration, the desired silhouette may change. The hem needs a walking trial in the intended shoes, since the upright studio pose does not establish stride length. Choose jewellery and a bag after these checks. This keeps the large accent a deliberate part of the whole look rather than allowing several nearby details to compete without an intended result.