Seashell nails! I used 2 coats of Zoya Anne, 1 coat of Dharma, and the 1 coat of Motley to get this look.
I should have done another coat of Anne, as it's a pretty sheer polish (slightly streaky application too) and I still have a little bit of visible nail line, but the effect is pretty charming anyway. Anne is a "My Nails But Better", or NBB color, if you will. Adding a coat of Dharma and a coat of Motley gave my nails a pearly blue iridescence that I just love.