I used 2 very thin coats of white - Essie Blanc - to have a better colour pay off from the pastel tones. Then 2 very thin pink coats - Essie Fidji - on all fingers but the middle finger were I used Essie Mint Candy Apple as a base.
Then I just used the nail polish brush to draw the V shaped or french patterns randomly.
Finish it up and seal it all with a coat of top coat. The drawings are just stickers and optional.
For this look the most important is to use very thin coats of polish since to avoid ending up with a think mess!