Now, I mean no offense at all, as I'm sure the dress itself is lovely, but I really don't see the Alice in this. :/
When I think of "dark Alice", I think of American McGee's Alice, and even there she is still wearing her trademark blue dress. If you cosplay in this outfit, I have a feeling a lot of people would be asking who you are supposed to be, and I imagine it'd get pretty annoying to keep having to tell them.