Pistachio -Vanilla Cake

This is one of my first attempts at decorating a cake, and I must say I am rather proud. It is a yellow cake with pistachio and vanilla bean buttercream piped in scrollwork, and made into buttons. This cake is about 4'' in diameter on the bottom, and about 3'' in diameter for the top layer. It would be even better if it were infused with a lemon syrup or filled with strawberry jam or chocolate ganache. MMMmmmm....