The white long reference appears from the side and rear. Thin shoulder straps lead to a comparatively straight rear upper edge. Numerous fine feather-like elements project from the long surface, with the outline broadening into an area lying on the floor below. The wearer holds the arms in front of the middle torso and turns the head sideways. Feet remain concealed. The image therefore describes the upper back and long outer line more clearly than the relationship to footwear.
Compare these projections with the organised hanging strands in the short main image without naming the two appearances identically. Here, individual fine elements project across the surface; clearly separated parallel fringe rows are not evident in the same way. A feather-like outline establishes neither real feathers nor a particular maker or production method.
If the fine outer contour is what appeals to you, note it separately from length and rear neckline. Ask for a view of the offered dress with its lower area falling freely and the planned shoes visible. Also request a description of the actual decoration. A rear photograph explains neither its attachment nor a care treatment.