Well I made all the players in advance then the task of making a large cake started. I made the cake in lemon sponge with lemon curd buttercream then set about icing the cake. I covered the whole cake in green sugar paste and started putting on the detail.
The pitch began with lines piped in royal icing and goal posts inserted, first image below.
Once I added the modeling paste figures and added some royal icing grass the cake really came together.
Here is the finished article and a close up of the players. All the players had the number 12 piped on their shirts to represent the age of the birthday boy!