Drip-sauce Naked Birthday Cake

I am asked to bring in a Birthday cake in celebration of the April Birthdays. I decided to bake a big cake of 2 flavors. This is a 2 layer-cake, the bottom layer is vanilla and the top layer is chocolate cake. I am frosting with buttercream and dripped with candy melts. This cake sinks in great for those sweet tooth.

Vanilla Cake:
1 box of white cake mix
1 cup flour
1 cup sourcream
1 cup sugar
2 Tbs oil
2 tsp vanilla extracts
3 eggs
1 1/4 cup water

Chocolate Cake:
1 box of chocolate cake mix
2 Tbs cocoa powder
1 cup flour
1 cup sourcream
1 cup sugar
2 Tbs oil
2 tsp vanilla extracts
3 eggs
1 1/4 cup water


Buttercream ingredients:
1/3 cup butter
1/3 cup butter
6 cup icing sugar
5-6 Tbs milk
3 tsp vanilla extracts

Candy Melts ingredients:
1 cup candy melts
1/3 cup heavy cream

Here are the pictures: