This is one of the cakes I had to do for the Wilton class I took. It was practice for doing the frosting rose.
Here is a shamrock cake to practice the star fill-in that is used frequently on character cakes.
This cake combines several techniques. It has a basketweave on the sides, royal icing flowers, and color flow butterflies. Royal icing allows for make ahead flowers and the color flow allows for more 3-d effects.
This is the fondant present cake. It is first frosted with buttercream frosting, then covered with a layer of fondant, and finally decorated with fondant embellishments.