A watercolor style that looks like sketched illustrations with loose paint. This is a strong style that applies well to most simple subjects, so just using the normal trigger is usually enough. If it isn't coming through enough or you want to tweak it you can try adding:
"watercolor sketch" (more simplistic, less detailed backgrounds)
"illustration" (less sketchy and more detailed backgrounds)
"watercolor painting" (less emphasis on the outlines)
