The first time I tried to do watercolour nail art the results were... No, let us not speak of it. Here, for the very first time ever and don't listen to any talk of other times, I finally tried my hand at watercolour nail art, and it was so much more fun than I expected!
With a solid base of white under a well dried coat of SV, I started applying my polishes one nail at a time, one colour at a time, and just a couple of tiny dots at a time. Without giving those dots time to start drying I dipped a paintbrush (bigger than those I use for any nail art) into some acetone and then dabbed the acetoned brush onto the dots. This has the effect of both lifting paint on to the brush and diluting the dot with acetone. Further dabbing spread the "watery" mixture around the nail, and by the time I'd applied all the colours I wanted to use, the white background was covered in watercolour neon.
(and if none of that made sense, there are tons of tutorials for this technique on YouTube)
These were mostly China Glaze, from the 2012 Summer Neons--Flirty
Tankini, Surreal Appeal, Hang-Ten Toes, Splish Splash, and I'm With the
Lifeguard--and I mixed in some Illamasqua Rare and Milani Neon Fresh
Teal. Next time I do these I'll probably use about half as many colours to keep it less crowded and really let the watercolour consistency of the application show through. As it is, though, I'm quite happy with how these turned out!