The dark green princess dress combines a straighter open shoulder line with short pale decorated sleeves. A shaped pale section emphasizes the front waist area. Below it, large pale motifs spread across a wide skirt, with another pronounced ornament zone lower down. Short pale fringe-like details hang along the bottom edge. The dark ground makes the boundaries of these lighter shapes especially visible in the overall view.
Use the reference first to decide where decoration should sit. Do you want a broader area near the bottom of the skirt emphasized, or would you prefer attention closer to the waist? Consider each area before returning to the whole figure. You can ask about a quieter or more decorated real garment without treating the image as proof of a particular fabric or production technique.
Bring jewellery into a second comparison. The neck area remains relatively open, while the short sleeves already place pale details beside the shoulders. Try pronounced earrings without additional neck decoration before comparing your alternative. The picture suggests that styling question but does not establish how freely the sleeves move. Check their position while bringing your arms forward and while wearing any intended outer layer on the actual model.