After baking the 3 layers, crumb coating the cake and adding the ruffled fondant layers (you can follow the tutorial from the previous ruffle cake here), place the gum paste covered wagon. For ombre ruffles working dark to light, color 1/3 of the fondant blue and then every layer or two (depending on cake size), add more white fondant to the blue. By the final layer (at the bottom of the cake), the fondant will be a pale, pale blue.
The base of the cake was finished off with these Sixlets Shimmer Candy Pearls:
The shimmer pearls make the cake a little more girly.