Preheat oven to 350°F. Prepare favorite pound cake batter. Assemble Wonder Mold pan following package instructions; spray with vegetable pan spray. Add batter and bake 50-55 minutes. Cool in pan on cooling grid 10-15 minutes; remove from pan and cool completely.
Wrap pedestal of cake stand with floral tape. Position cooled cake on stand; lightly ice with buttercream. Tint fondant light orange. Roll out 1/4 in. thick to 15 in. circle; cover cake with fondant.
Roll out a variety of colored fondants 1/8 in. thick. Cut black fondant with largest flower Cut-Out and attach to top of cake. With remaining black fondant, roll 2 same-sized balls and a cone; shape finial by threading on lollipop stick. Insert stick into top of cake.
With tip 3 black royal icing, add vertical lines and outline fondant shapes. Cut flower, leaf and butterfly shapes; dust, if desired, with Pearl Dust. Brush backs of shapes with water; attach to fondant-covered cake. Roll 1/4 in. neon purple fondant balls; arrange around cake for bottom border.