Hi Marie!! I did my homework here's the link for the royal icing ones
These are the instructions from the book A potpurri of flowers
Poinsettias, when they bloom, have different combinations of bracts and flowers. The bracts are the red and green parts of the poinsettia and the flowers are in the center of the poinsettia. The red poinsettia in the photograph has the following bracts and flowers:
Three large, two medium and two small green bracts.
Seven large, five medium, five small and four extra, small, red bracts.
Fifteen flowers made from a combination of five of each size.
1. Roll a number 16 sausage of green gum paste over the five ridges of the large CelBoard. Dust with cornstarch, flatten using the XXL pin, then roll up and roll down, until the ridge is visible through the paste. Peel off and turn over, cut out with the small and medium cutter. The ridge should be about 3/4 of the way up the leaf. Insert a 26g green wire that has been dipped into egg white, half way up the leaf and mold around the base. Vein flat side on the small multi-leaf veiner, pressing on the back with a piece of foam. Remove, soften edge on the soft side of the CelPad with medium pin. This is done on the back of the leaf, (ridge side,) so as not to remove the veining. Turn over the leaf and with the veining tool, vein down the center of the leaf on soft foam on the flat side. Then hollow the base of the leaf, also on the flat side. Dry on crumpled aluminum foil. For large leaves, roll a number 12 ball of gum paste over the long ridge of the large CelBoard. Repeat all steps as for small and medium leaves, but use 24g wire and vein on the large multi-leaf veiner.
2. Once day, tape the base of leaf with 1/2 width light green floral tape about two inches down the wire. Dust lime green in the center of the leaf and forest green on the edge of the leaf. A little red is then dusted at the base of the leaf. Once dusting is completed, stem the leaf to set the dusting powder, then brush with shortening.
Repeat as for green. The only difference being:
The small and extra small have 28g white wire used and are dried flat.
The medium and large have 26g white wire used. Once made, these are dried over small Wilton (R) flower former. Once dry, tape as for green bracts, dust a little lime green at the base, and a little red highlight.
The central flowers of the poinsettia are made up of three different stages, (small, medium and large.)
Take a 28g hooked green wire, dip into egg white and insert into a number 4 ball of yellow paste. Mold into a balloon shape, pinch with tweezers and mark in half with a toothpick, (like ("Mickey Mouse" ears.) Once dry, dust lime green at base about 3/4 way up.
Same as small. Once balloon shape is created, pinch two times with tweezers, (like a pair of lips.) Once dry, dust lime green at base and a little red to one side of the lips.
Same as medium and small, but use a number 5 ball of paste. Once balloon shape is created, pinch center and snip with scissors, fold around to form a "spiky" center, (looks like an upside down onion.) Once dry, dust base lime green and red on the "spiky" tip ends.
Divide the green bracts, red bracts and flowers into three fairly equal groups. Tape each group to form a 1/3 circle. This is done by starting off with the large buds, medium buds, small buds, red bracts (smallest first); then, green bracts to finish. Once the three separate sections have been taped, tape together to form the finished flower, adding one 18g wire in the center. Once completed, steam the flower.
Hope these are useful to all !!!