"She appears as an ethereal flowing shroud with the suggestion of a shapely female body underneath. It is said that Pale Night's true form is so hideous and terrifying that reality itself rejects it. The shroud that she "wears" hides it. To glimpse Pale Night's true form is risking madness and death"
Two days ago I saw the description of this arch-demoness on Wikipedia. It was an idea so beautiful I just had to make a concept of it. For the visuals I got inspired from the baroque fashion of the "veil of marble".
For some screenshots of my Zbrush mesh give a look at my facebook page: