Long ago, before I bothered photographing my nail art and sharing it with all of you, I did a water marble that was reminiscent of abalone shell. The original version didn't have the black, and I believe it had a bit of pink in it, but it was quite similar to this.
So I decided to do it again! I love it. There's something magical about a well done water marble, isn't there?
-------------------------- I have more nail art, as well as additional information, on my blog: [link]