Attached Link: http://poserg.sakura.ne.jp/vue/index.cgi

Here are a couple dresses that may be similar click "Gothic Lolita" on the right), but they don't have the floppy hat. You may be able to find something like that separately tho.

If they don't fit the character you want to use, you might be able to make them fit with CrossDresser or Wardrobe Wizard of you have it.

Laurie