Four Layer Funfetti Cake

So, I owed a friend a cake for practically saving my life almost a year ago. I felt bad because it had been so long and I kept forgetting to bake him a cake. So, I decided to go all out to make up for my forgetfulness. I baked him a four layer cake. His favorite kind of cake is funfetti, so I just made two cakes out of the box, and baked them in four round pans. Then, I stacked them on top of each other, layering rainbow chip frosting in between each cake. Finally, I made homemade vanilla frosting for the outside and added pink sprinkles to make the cake look pretty. It was a success! I am so happy it turned out! It took me almost 4 hours to bake, but it was totally worth it! Here it is...