Phew, you did it! The hardest part is over. Time to add the final touches, like extra piping, fresh or sugar flowers, figurines, initials, marzipan or fondant fruits, and whatever else you planned. Aside from taste testing, this is the most fun step, so enjoy showing off what you can do — whether it's gorgeous freehand piping or artfully arranged fresh flowers.
You should use a recipe specifically designed to be a wedding cake as it will ensure that it is sturdy enough and that it makes the right amount of batter and icing. For a three-tier cake, you need to make three cakes of 12", 9" and 6", as well as a massive amount of icing. Most three-tier cake recipes have a step-by-step schedule for when you will need to bake and assemble each part.