Decorate cake. Use tip 5, a cut disposable decorating bag and reserved icing to attach violet, red and dark orange flower pieces so tips are touching. Use a damp brush to attach front heart flower pieces (blue over violet, pink over red, and yellow over dark orange), overlapping ends slightly. Arrange flowers randomly on side of cake and on top of cake.
Use tip 5, a cut disposable decorating bag and icing to pipe a dot to attach peach fleur-de-lis pieces in a triangle and to attach green fleur-de-lis pieces above peach flowers.
Use fondant roller with pink guide rings to roll out reserved green fondant 1/16 in. thick. Use wide end of tip 5 to cut circles. Use icing to attach circles to larger flower centers.
Use tip 5, a cut disposable decorating bag and icing to pipe the bead border.