I have only seen this cake done in fondant. This means to me that the foundation of the cake should be fondant. But here goes my question : Can you make the cake that has the tight center gum paste rose or gardenia type flower where the petals expand out toward the top of the four tier cake and then also downward? They are individual petals that give the effect of this large flower with outward spiraling petals. I hope I explained this properly.