So, I don't really know what that piping style is.. but that's what I typed into google to find swirls and piping that I liked! So its a combination of all the things I saw and the decorations on my cousins wedding cake.
Just MMF, with black royal icing on the outside!
I made the topper as well to look like the bride and groom. The base of the topper is a candle holder covered in clay and cut out.