Wow! I like this a lot. This may be a stupid question, but what is BCD? Also, I'd love to know how you did the icing, if you don't mind sharing your technique. :)

C-Lady BCD is Buttercream Dream. The icing was done by starting with a fully iced smooth (Melvira method) yellow iced cake, then I applied the diff colors in the pattern I wanted with a smaller star tip. I then let it crust for 5min and began to smooth (Melvira method) until all the colors were blended as I wanted. The borders were done by striping the bag with all the colors. :)