That's a pretty decent looking dress all-in-all... I never could figure out Blender or I'd offer to help, but I gotta be honest.... Blender beat me and I've never been able to make heads or tails of how to make it work for me. About all I use it for is file format conversion when I see items I'd like to use but need a different mesh format to use it (Blender seems to have the largest file support of any program I've seen yet in terms of the file types it can load, utilize and convert)...