Both tiers are white cake with plain buttercream. All the accents are fondant. Bumblebee was made out of Rice Krispy treats and then covered in fondant. I was pretty happy with how it turned out, though Bumblebee gave me some trouble and didn't turn out as clean as I would have liked. The 7 and the name were made to look like they were made out of metal and had rivets in them... Not sure if that came across. My DH said he got it, so that's good... LoL.