Drip paintings were made famous by by Jackson Pollack and later dragging over dried paint in a variety of colors was made even more powerful by Gerhard Richter,  The idea is to find a color combination that will work together and apply the method to your canvas. Either method creates a statement out of informed chaos. This seems hard and it can be, but we have a few plans for this that can help you achieve a similar look. The key to modern expressive art is counter intuitive..there is a commitment to planning.