A V back opens the centre between broader floral straps here. The pattern follows the edges and meets above a narrow decorated waist area. A short central section of small pale details is visible there. The softly falling white skirt widens below and ends in a short trailing rear section. Hair is arranged as a loose side braid. One hand hangs near the skirt while the body turns. This view shows the rear length more completely than the close photograph with a long row, but does not reveal how the actual fastening operates.
If the open upper centre appeals to you, compare it with your own hairstyle before adding neck or back chains. Decide whether the small finish at the waist is enough or whether you want a longer visible line. Those are different design requests. Ask for the actual closure to be shown before assigning a function to it. Include the floral border when discussing alterations. A higher closed back would change the open area as well as adding details, so begin by identifying which part of this visible V you genuinely want to keep.