5-tier chocolate Barbie and vanilla smash cake

My interpretation of a Barbie… Chocolate with home-made raspberry syrup and dark chocolate ganache for all tiers but the bottom - roasted hazelnut ganache with Kahlua. All are 2â€, torted in 3 layers, for a finished height of 3â€; 12-10-8-6-4-inch rounds for a party of 35-40 people - only the secret spiked bottom tier remained 5 minutes after slicing the cake – everything else was devoured!!! Used 4lb of dark chocolate… The smash cake is scratch organic vanilla sponge with Mascarpone filling and frosting.