The fine-strap bridal dress shows decorated upper lines and a shaped neckline. Vertical sections divide the bodice before a broad gathered skirt with small bright reflections begins below. The arms are placed widely against a window frame. Parts of the feet and hem are hidden by the crop and skirt position. That wide arm arrangement supplies a view rather than a complete movement sequence.
Try your actual candidate with arms relaxed first. Then compare the careful arm lift involved in your planned dance. Notice where the upper edge sits and whether you want to wear the strap arrangement in that position. Visible vertical lines do not explain inner support, so have the real construction shown separately.
Afterwards assess the broad skirt in the same shoes used for other candidates. Walk and sit without initially spreading fabric sideways. If you want to gather fullness for part of your route, add that as a separate handling trial. The upper-body arm question then remains distinguishable from the amount of fabric below, while both are assessed on the same real garment.