Don't these kind of remind you of petit fours? :)
China Glaze: Below Deck
China Glaze: Sea Spray
Revlon: Base + Top Coat
1) Apply 1 coat of O.P.I's 'Sea Spray' on each nail.
2) Paint 1 layer of O.P.I's 'Below Deck' on half of each nail. I did it by free hand. If my line wasn't as straight or centered as I liked it to be, I would just go over it again with either color once my nails dried until I was satisfied. If you have trouble doing this, you can use a piece of scotch tape instead for a more precise line.
3) Finish by applying Revlon's Base + Top Coat on all nails.
*I highly recommend using China Glaze polishes for color blocking because of their incredibly pigmented, smooth, and fast drying formula.