Why did Luna and Celestia have to share dress colors with each other/Twilight? The dresses looked okay but the color coordination felt off. Cadance got her own dress that was independent of Celestia/Luna's.
That dress clashed so horribly with Luna's coat colour, Rarity would never let such a crime agaisnt fashion go unpunished, the one responsible for it would have his head rolling by now. Hire her already!