The cake was a coconut lime butter cake with Swiss buttercream icing and covered in marshmallow fondant and royal icing. The top tier decor is all MMF, the second tier is royal icing piped on MMF, and the third tier is a combo of both.
Side view of the cake.
Close up of the top tier. The bride and groom opted not to do a topper for the cake, so I incorporated a little something into the design.
For a first attempt, I'd say this takes the cake (bah dah bump!).