One day in advance, make leaves. Prepare royal icing following recipe instructions. Combine Leaf Green and Moss Green icing colors to get light green color shown. Combine Kelly Green and Black icing colors to get medium green color shown. Combine Moss Green and Royal Blue icing colors to get dark green color shown.Tint ¼ cup icing each light green, medium green and dark green following color combinations provided. Prepare decorating bag with tip 101s; fill with small amounts of light, medium and dark green icings, allowing colors to mix in bag. On wax paper-covered board, pipe 200 to 210 petals and leaves (follow Apple Blossom, Daisy and Violet techniques for piping petals). Let dry overnight, at least 8 to 10 hours.