Here is what I think Princess Cadance's dress looks like. I had a lot of fun with the colors and just drawing this up! Cadance is a kind and caring based on what Twilightsparkle's flashbacks were like. So I used a delicate look for her gown - cutie mark included still.
Why are all of these dresses so cool?! Rarity would be jealous
I love your interpretation of her dress design! C: