Orange cake

A brand new year and a new challenge. Baking. Searched the web and finally found a simple orange butter cake recipe. Reminded me of the times when mum used to bake. Butter cake my favourite. Healthy cos' it has just
2 eggs
115g of butter
120ml of orange juice
170g self-raising flour
170g sugar brown

Now to look for interesting icing for the cake.
Any suggestion?