the dress is Noctia
http://www.renderosity.com/mod/bcs/index.php?ViewProduct=68868&vendor=60058

it was recently on sale for like $10 and i missed it because Rendo has a completely unclear and non-standard sale end time of the morning of the day they say the sale ends.  ah, well.  at full price, it's still a steal because it seems to come with tons of morphs, both for fitting and for changing the drape of the dress' skirt.

i'm interested in finding out where that orrey came from, too.