In general, if you paint with watercolor in your dream it signifies that you will soon have a chance to fulfill your wishes and desires. Often in indicates opening up of possibilities and choices. In most of the case you yourself will be the architect of this but in some destiny itself will be the architect.
Simply seeing a watercolor painting is an indicator of good health even well into the old age and consequently a long life. If you have some troubles with your health, seeing a watercolor painting means that you should expect improvement of your health situation soon.
The meaning of a dream in which you buy a watercolor painting is that of increased stability in the future. Some aspect of your career that keeps changing might get stabilized for a significant amount of time. For example it is possible that you will enter into the development of some long term project or simply enter into a position in which long term income will be essentially guaranteed. Alternative meaning of this dream is that of receiving support from your loved ones at the right moment. This support will be quite helpful and it will mean a lot to you, giving you an impetus to continue forward.
Dreaming about your room being painted in vivid watercolor is indicative of you being quite happy with your current personal life arrangements. You might have found a perfect balance between personal freedom and keeping your friends happy.
If in your dream a watercolor portrait of you is made it means that you are the subject of gossip. Alternative meaning of this dream is that someone is closely watching you and your moves.
The interpretation of a dream in which you buy watercolors is that you should pay more attention to your spending habits. You might have developed some expensive habits that are putting strain on your budget.