I have seen some really amazing looks using this technique so I had to give it a try myself. I was going for something more along the lines of a "fall" look. For this one, I started with a base of Finger Paints Circus Peanuts (swatch here) followed by a coat of OPI Call Me Gwen-Ever (swatch here) and then Finger Paints Sketchy Character. I didn't look for specific instructions, so I just went with the lightest to darkest shades. Once the top layer was sort of dry I took a brush dipped in acetone and set to work making the "design". I was surprised at how much it took to really get through all the layers (and with only one coat of each color). The Circus Peanuts was difficult to get to really show up much but I am pleased with the overall look nonetheless. I am sure I will revisit this with some other colors in the near future...or maybe after the Summer Challenge is finished!