I need a wedding dress re modelled .

It is a simple sleeveless column dress with a very plain zipped finish at the back. Dress is not bias cut. My daughter would like the back to dip to a v in a way which complements the bust area ie probably strapless or thin cross over straps.It needs to be taken in a little at the bust/back and possibly two pieces of light boning depending on the above.
She is pregnant so wants to make the most of her back view!
The wedding is at the beginning of June and we are travelling to Malta at the end of May.

Thanks.