This was probably the step that required the most work! Rolling out your fondant!
Find yourself a good piece of counter top or other flat surface that has been thoroughly cleaned. You don't want your fondant picking up pieces of dirt! Then roll out enough to drape over your cake. (If you did my 3 portion method, just one of those should be enough.)
Don't worry about this piece looking perfect as it will just be the underlay of the decorations.