I bought my dress at a sample sale, after only trying it on once.
Now having it here, there are thing I want to do to fix it. My gown is Rhianna Royale by Maggie Sottero.

This is how it currently looks, however I want more of a ball gown pouf on the bottom of it.
Any ideas what kind of a slip I'll need to get it this full? I just feel like the DB fit-and-flare wouldn't even come close to how I want it.