Claudia's blue gown (Interview with the vampire)

[ghost_ofa_rose]

Last year creedsgalbirdy  posted these pictures:


 


And ever since I've been wanting to make this gown. So which patterns should I use? And how much fabric would I need for the back of the skirt? I have no idea how much fabric this kind of ruffling takes.

Ps. creedsgalbirdy : I hope you don't mind that I used your pictures. If you do, please let me know and I'll remove them.