Pink Ombre Cake

My niece Xin Yi requested a Ombre cake with pink in color.  Quite a tough job for me as my piping skill is not that good.  Baking two times of recipes using Judy's Black forest cake recipe (modify a bit) and put in the color.  Using fresh non dairy cream plus Frosty whip (2 to 1) for the frosting.  Forgive me the messy piping of the cake, haha!

Cake Ingredient: (Two 8 inch pans)

140g Cake Flour
1 1/2 tsp baking powder
70g Corn oil
5 Egg yolk
85g Water
5 Egg white
1/8 tsp cream of tartar
120g sugar

Method: (Preheat oven at 180c)
1. Mix the yolk, oil, water together well.
2. Sift the flour and baking powder and mix into the yolk mixture till smooth.
3. Whisk the whites, cream of tartar till bubble foam then add in the sugar and whisk till stiff.
4. Fold in some white into the yolk mixture then pour it into the white mixture.
5. Bake at 180c for about 25 min.