Though this cake was little, only a 6", it took me hours to make! All the petals on the outside of the cake are made from gumpaste. They were cut, then using an impression mat, veined and then each edge of every petal was rolled to make them look realistic. I had to make the pedals a few days in advance as the cake had to be refrigerated and I didn't want the pedals to go limp from any moisture in the fridge.
The gumpaste rose topper was made the same way as the petals on the sides of the cake. I had to make each petal individually and then bend and attach it to the rose.