This is a round cake with a smaller cake molded into a tank on top. The cakes are both yellow cakes with chocolate whipped frosting. The smaller of the two was baked in a mini loaf pan, frozen, and then shaped with a knife. I iced then covered with fondant. I also added peanut butter cookie crumbs for a little sand and fish shaped sprinkles on the sides. The chocolate "swooshes" were supposed to be like chocolate waves. This is my first cake of this kind.