Small flower cake

Name: Small flower cake
Cook time: 3 h
Total time: 3 h
Yield: 1
Ingredients: 450 g soft butter; 300 g Sugar; 1 pinch Salt; 1 package Vanillin sugar; 5 Eggs (size M); 500 g Flour; 1 package Baking Powder; 100 ml Orange juice; 450 g white marshmallows; 1300 g Icing sugar; 2-3 TABLESPOONS Milk; 7-10 Tbsp red, green and blue food colouring; 1 Protein (size M); 7-10 Tbsp Fat and flour; 7-10 Tbsp Icing sugar; 7-10 Tbsp Cling film; 7-10 Tbsp Freezer bag; baking paper; 7-10 Tbsp Disposable piping bag