Rainbow cake

On a day like this we can’t even hope for a rainbow, but I saw one a few days ago and it was beautiful (I think I saw a double rainbow actually).
This cake was a bit of a challenge as it is only a half cake, but it had to feed 18, and therefore I had to make a 36 slice sized cake. Luckily I had a big enough cakeboard in stock. 😉 Then I started to worry about the structure, but I found a solution for that too. All turned out great and the birthday girl was very happy for it. 😊😊