Combine cake mix, buttermilk, oil, and eggs in the bowl of a stand mixer; mix for two minutes on medium speed. Use a rubber scraper to scrape the bowl for dry mix.

Place 12 kraft wave baking cups and 12 royal blue baking cups into muffin tins. Use an ice cream scoop to fill each cup 2/3 full with chocolate cake batter. Bake 350° F for 13-15 minute, or until a toothpick inserted comes out clean. Carefully remove baked cupcakes from tins and place on a cooling rack to cool.

To make the Belle cupcakes, place vanilla frosting in a medium mix bowl and use a butter knife to add a small amount of Golden Yellow food coloring. Use a rubber scraper to mix the frosting till the color is even throughout. Add more coloring as needed.

Place frosting into a piping bag fixed with a Wilton 1M star tip. Place in the fridge for 10 minutes to allow frosting to firm up. Pipe frosting in a swirl motion onto each of the cupcakes with a kraft wave cup. Top with white candy pearls and a rose icing decoration.

To make the Beast cupcakes, place chocolate frosting in a clean frosting bag fixed with a Wilton 1M star tip. Place a cupcake into one of the 12 empty royal blue baking cups; pipe frosting in a swirl motion onto each of the cupcakes with a royal blue cup. Add candy pearls one at a time to make a line around the base of the frosting on each cupcake. Top each with a rose icing decoration.