The dress is made by Juefei He.
Take a look at this fabulous dress created by Juefei He in Blender, Marvelous Designer, ZBrush, and Substance 3D Designer.
The model itself was made in Marvelous Designer, Blender, and ZBrush, while the texturing was done in Substance 3D Designer.
The intricat details of the outfit deserve special attention:
Juefei He has other great works you can see on ArtStation.