Superhero Birthdays

So Super Hero's are still quite popular with the 3-6 age group, as I have done 2 cakes in the last 2 weeks! First a very special boy was turning 5, and wanted ALL the superhero's on his cake...I couldn't do that but tried to accommodate him as much as possible :) The cake is a 3 tier cake. The bottom tier is an 8" yellow cake, the middle tier is a 6" chocolate cake, and the top tier is a 4" chocolate cake. All the cake is iced with  buttercream icing. The top tier (Hulk) is all buttercream, the middle tier (Spiderman) is buttercream with fondant spidey eyes, and the bottom tier (Batman) is buttercream with a fondant batman and city buildings.