I couldn't find a mesh with a ruffled neckline, this is as close as I can get to the pic without one. I also did a pink one, for a bridesmaid and a red with lace inset as clubwear.
The mesh is by Besen, and I left the cross from the original texture in because it was too pretty to cover up...hope she doesn't mind. Stop by the site, there are so many beautiful meshes and skins to choose from.
http://www.besens-sims2.de/Don't forget to download the mesh...won't work without it.