Birthday Cake

In a couple of weeks it is going to be my birthday. I am allowed to have any flavoured cake I want. I would like a cake that is easy for my mum to make with lime icing and plastic fairies on it. It is going to be a chocolate flavoured cake in a circle shape. I would like an archway on it but I think it will be hard for my mum to make. The cake is going to be green with lots of little flowers on it. The flowers will be pink and purple and made from icing. I hope my mum can make this cake for me for my birthday.