That should be it. The long tail should be off and look like this.
Now just reassemble. The spacers above are a bit of a PITA to fit. What I did was to put the bolt threw the tail tidy, put the space on (both sides), then align the rear tail light and tighten.
Finally with everything tightened and together, pull the excess wiring threw the hole that you exposed by removing the seat (this is why you want the seat removed). Make sure there isn't any areas that the wires can pinch and reinstall the seat.
Underneath the new tail tidy, I just zip tied the wires lightly together to keep everything neat.
That's it!