Hola!
I did this nail art weeks ago but didn't have time to write about it. It's really cute if you don't look at it too close.. Wtm.. I just bought myself a set of dotting tool and I tried them out with this nail art. Pretty fast and easy compared to drawing hearts with a brush, especially lots of hearts.
As for the colour, even easier. Started with red at the tip of the nail and then add little white towards up. So, dotting tool wins!
michellesnoopy