Copying a strapless dress pattern from the 1980s for the basic shape onto muslin, I extended the lines for length and added a flared hemline. I also added a small train that comes to a subtle point. I flat-lined each piece in a rich turquoise satin, which will also peek through at the leg slit on the front of the skirt.
The fabric I found on Etsy is absolutely perfect, but the icy linear pattern done in silver threads goes the width of the fabric, not the length. It wasn't as wide as I am long, so I had to futz with the pattern a bit, making the bust-line area out of separate pieces.
This added the length I needed and the seams won't show once all the sequins and bodice decor goes on over it.
This dress form is my Uniquely You form, and after at least 3 fittings and re-fittings/stitching/shoving/zipping; she's still a bit full in some areas (mostly the chest and hips) compared to my own size and shape. I may need to shave some of her foam down, as many others with similar issues have done to their own Uniquely You forms. I'm 5' 10" with a 36" bust, 27" waist & 38" hips. This form is at a 37-28-40, even after fitting the outer fabric shell to my own body. The base foam figure is already their size "Small", and their X-Small base form is too short in the torso for me. For now, it's something I can pin stuff to until I can make those adjustments.
I wanted my dress to be a bit fuller at the hem than what is portrayed in the animated film. The richness of this fabric is amazing and I just wanted more of its gorgeous, icy, folds swishing around me as I walk, and cascading behind with the sheer glimmering cape.