caption: The image shows a mannequin wearing a blue dress with long sleeves and a ruffled neckline, which is likely a costume from the 18th century. The dress is made of a light, airy fabric and has a fitted bodice with a full skirt that falls to the knee. The sleeves are long and the neckline is cinched at the waist with a thin, delicate lace trim. The fabric has a subtle sheen that catches the light and adds a touch of elegance to the look.