This watercolor is done on aquabord. I have been trying this out because it allows framing without glass. There is a big difference between this system and paper, espcially if you are working wet into wet or just wet. The paint quickly sets up and glazing causes it to lighten or wipe off, somewhat like using Yupo. I have tried several boards now and have yet to feel comfortable with the aquabord system.
The fog in this painting was created by running water through a previously applied wash that was still wet. It is difficult to create soft edges. It is my feeling that this system only works with dry brush painting. If you cannot glaze then you might has well be painting with acrylics or oil. The magic of transparent watercolor painting is lost.