First, take some time and explore watercolors and other sites in order to understand the Painting tools, history, theory and diversity of styles and techniques of other artists pages. Once you have a basic idea of what is involved, a watercolorist, and you're willing to give it a go. You do not know how to begin to draw well to make art. That comes with a lot of practice. But all the techniques used to create beautiful learned that Watercolor, more or less like all trade with a particular set of skills. Each work of art will gradually lead you to express your own style. Could be marketable if it is not satisfied, if your painting skills you can evoke an emotional response from the audience and patrons.. What is the vision is unique for everyone? The footsteps of the path that lies before you are yours to follow until you can find your own path. Watercolor imaging, and the subject of the painting, and the point of the image. There is nothing to "always" or to provide "understanding", but for sheer beauty and color effect on the feelings and emotions. If you want to know more about this medium Read Here