When glazing, it's crucial to let each layer dry before applying the next. Otherwise the paint of the old and new layers will mix on the canvas. If, like me you tend to be impatient and want to get on with a painting, this is where acrylics has a distinctive advantage over oils because it dries so much faster. If I'm working on a small canvas, I often use a hairdryer to speed up the process, but with a larger painting I distract myself with something else to give it time to dry thoroughly.
Between the last photo and this one, several glazes have been applied, particularly various blues in the sea. (Oh, and please don't write to tell me that the horizon line isn't straight; I know! I seem to have this tendency to slope a line down on the right-hand side. I've tried using a ruler, but as you can see, it's something I need to work on...)
Once again I don't worry about the paint running down the canvas -- in the photo you can see clearly where the sea has run over the sand. As each thin layer (or glaze) is applied, an individual glaze's marks become less obvious, but they all add up to an intriguing final painting. The multiple layers create an effect that you simply can't get with one layer of paint.
