I don't wish to replicate the photo, instead I'm focusing on a wedge structure flower.
Working in EQ7, I drew the flower and the leaves in pentagons. Unfortunately, I didn't like any of the patterns when they were placed side by side. So I'm going with a change in size and overlapping the blocks for a more pleasing arrangement. It's probably going to be more difficult to sew, but I'll figure it out!
And here are some fabric choices: