Polymer clay flower cane

I found out this beautiful flower cane on the Internet and decided to give it a try.
 Everything starts with a polymer clay gradient, made of three shades:
We roll it, starting with the white part. Then we cut the cylindre to create some space for the patterns of the petals:
 The pattern is simply made of brown clay sheets and yellow cylinders wrapped in polymer clay sheets the same color.
We roll the cane inside another sheet of brown polymer clay. We reduce it and cut it into as many petals as we want. 
 Then we do the same with a thicker sheet of white polymer clay.
And we reduce the final cane, once again !