For the feathers: Cut out 18 leaf-shaped pieces from the rice paper of varying sizes, 1 1/2 to 2 inches long and 1/2- to 1-inch wide. Starting from the rounded bottom portion of the feather, cut a slit inward towards the center. Continue to create a fringe like design along the edge of the feather working up towards the point of the leaf. The slits should start out larger and slowly taper towards the top. Repeat on the other side, making sure not to cut all the way across (there should be an uncut piece running up the center of the feather).
Place the feathers on a piece of parchment paper. Using a paintbrush and a small amount of the rose petal dust, lightly brush the fringed portion of some of the feathers, leaving some without any pink coloring. Then brush the petals all over with the silver luster dust.
For the doughnuts: Put the confectioners' sugar in a bowl. Whisk in the milk until no lumps remain and the glaze is smooth. Dip the tops of the doughnuts in the glaze to thoroughly coat. Hold the doughnut upside down over the bowl for 30 seconds to allow any excess glaze to fall off. Place on the cooling rack frosted-side up.
Top the doughnuts with sprinkles. Dip the ends of three feathers in the glaze and adhere in a cluster to one side of the doughnut.