A narrow waist band creates a horizontal boundary through curved pale rows in this close view. A small bow shape appears at its centre. Above the band, a higher decorated neck edge sits over a deeply shaped front pattern. Longer sleeves carry similar curved motifs on a translucent-looking ground. Beneath the waist the drawing follows a closer lower outline, with a finer outer surface alongside. Only part of the head is included and the entire hem lies outside the picture.
Temporarily set the narrow waist line aside, then consider the whole centre again. Should the horizontal interruption between curved directions remain distinct? This question concerns visible distribution. The photograph confirms neither a separate belt nor its removability or adjustment.
On your actual dress, compare the line’s position standing and seated. Ask which neighbouring area would be affected by a proposed alteration. Try that real model instead of filling its missing length with another reference. Pale reflections and warmer photographed colour identify no particular fibre, stones or handwork.