This is exactly the kind of occasion look that feels elegant because it never chases too much. The sleeveless cream dress has a softly tailored top half, then opens into a pleated lower section that gives the outfit movement without excess volume. It already has enough presence on its own, which is why the styling can afford to stay clean.
The black hat changes the entire mood in the best way. It adds drama, scale, and a touch of old-school polish, while the black clutch and pointed shoes keep the outfit grounded. The layered jewelry introduces a lighter, more personal note, which stops the overall look from feeling too formal. There is structure here, but also warmth.
For weddings, race-day events, or daytime occasions where you want to look dressed without looking heavy, this is a strong reference. One fluid neutral dress paired with a single bold accessory can achieve far more elegance than an outfit crowded with competing details.