Material on flower

This is the finished material for the blue bell flower. Firstly i made a purple gradient for the outside using photoshop and the gradient tool. then using the uvw map to position it correctly. Then for the outside material i used the same gradient on one layer and then created another layer and used the brush tool to create black spot and then on the blending options created a outer blur in white. This is the finished product not identical but close enough for me!