This was for a wedding for 30 guests. Modeled after my cake "Autumn Pearls", The bottom is styrofoam. Pearl strands on bottom tier were cut to length and place one the cake one by one. Flowers on top of bottom tier are silk .... all other flowers provided by florist. Edible pearls on middle tier .... strand of fake pearls on base of bottom tier. Top tier icing "wrinkled" .... never had that happen before. Any ideas why???? Iced in BC.