First attempt for my daughters third birthday

Girlfriend loves Peppa Pig and just asked for a pink and/or purple cake. I tried to do both. My purple came out gray, but I used kerrygold for my buttercream which is more yellow and the only unsalted I had left after making two better batches of buttercream for the pink..and my gel color is like 6 years old (and didn’t have “bright white”). This cake was my very first time trying something fancy, I realize there’s plenty to improve upon.. my husbands birthday is next and I’m motivated to try again/keep going.