Layla's Birthday Cakes

I made these for my sister-in-law's birthday and they were demolished by her friends and family in no time atall! When I made the frosting I was distracted so had to leave it in the fridge before coming back to finish them. When I returned to the frosting it had stiffened a little so I just mixed it again. This actually gave the frosting a quite nice, almost transparent-ey type of effect, as opposed to the more creamier looking frosting. Surpringsly it tasted just as good, if not better...