re: How was this done

The top tier will be on a cake separator……..you can buy these from cake decorating shops and online.
The pleats are folded over fondant and the beads look to be plastic decorations….
Each tier should be iced on a seperate thin cake board, then dowelled for stability…..the top tier is on a thicker cake drum….
They look like they are 12", 10", 8" and 6" cakes…..
Really hope this helps, and any more questions just ask! ;-)