We got married in May, and had a 3 tier fruit cake, only one tier of each was eaten. The other two tiers have been wrapped in foil, but not kept airtight. I'd planned on re-icing the smallest as a Christmas cake, but I've got it out and the icing looks fine - there is a crack across the middle where is has presumably dried out a little, but it's not yellowed at all, and I could easily cover that with decorations. WDYT? Will it be ok to eat?