A Hot Pink and Green Modern Monkey Topsy Turvy 1st Birthday Cake. This is my very first Topsy Turvy cake I have done. I think it turned out well but I do know that next time I will need to put at least 4 layers into each tier to give it more height. Bottom Tier is Dark Chocolate Cake with Peanut Butter Mousse filling with Reeses Peanut Butter Cups. Middle Tier is Vanilla Cake with Strawberry Filling. Top Tier is Red Velvet Cake with Cream Cheese Frosting & Filling. Covered in Marshmallow fondant & Classic Buttercream underneath.Comple with smash cake for the litte girl to devour!