All of these looks work with a cardigan worn buttoned or unbuttoned, especially the dress pairing!
You may think your cardigan looks better when unbuttoned and open with your dress, but wearing a buttoned cardigan over a dress looks very cute and adds dimension.
Again, don’t be afraid to be a cardigan enthusiast this spring. They’re versatile and come in so many fun patterns and colors that you can easily find one for any outfit in your wardrobe. Enjoy!