Combine Rose with Burgundy for pink shown. Combine Sky Blue with Royal Blue for blue shown (balloons). Combine Royal Blue with Cornflower Blue for light blue shown (iris).
Tint 1/2 cup icing dark pink, 1/2 cup light pink, 1/4 cup dark blue, 1/4 cup light blue, 1/4 cup yellow and 1/4 cup black. Reserve 1-1/2 cups white (thin 1-1/4 cups with 4 teaspoons light corn syrup). Prepare disposable decorating bags, separately, with coupler and light pink, dark pink and white icing.
Prepare additional disposable bags, separately, with tip 3 and black, yellow, and blue icing. Position cake on plate. Ice cake sides, background areas and eye smooth with thinned white icing.
Decorate middle swirl. Use tip 1A and dark violet icing to pipe a smaller single swirl on top of the bottom swirl.
Decorate top swirl. Use tip 1A and burgundy icing to pipe a smaller single swirl on top of the middle swirl.
Serve and enjoy! Assemble treat stand according to package directions. Position cupcakes on stand.