Those are just fantasy flowers, it looks like a double layer of a four-petal or three-petal cutter with the edges of the petals ruffled. Then take a little brown gumpaste and put it in the middle of the flower and press it with the ball tool to make the doughnut shape. It looks to me like the stamens are actually painted on the flower.
Ah, no, I can see that the stamens are inserted into the little center in some of them. I think they're supposed to be anemone, but they're a very freeform version