A gold cut-out dress shows several openings between the upper neckline and waist. Narrow connections frame those areas, and a long reflective skirt begins below them. The crop concentrates on the torso without showing the full lower hem. You therefore need additional views and an actual length measurement before making a complete outfit decision. The gold tone by itself establishes neither a suitable occasion nor the fibre composition of the garment in the picture.
For a similar shape, test the edges in different positions. Sit down, lean slightly forward and check whether you retain the coverage you want. Try your intended underwear under the actual dress rather than assuming an unseen solution from the photograph. Also compare a bag without a strap across the torso if you want the narrow lines to remain clear. Before planning an alteration, ask how the connections are constructed and what an adjustment would change. Use the image to locate the openings you like, while resolving fit and handling through the real garment and the practical requirements of your own evening.