I find the freestyle watercolors by Herry Arifin (aka mypaintings4sale on Flickr) very enjoyable:
I paint with watercolor. Sometimes I add ink, gouache or oil pastel, depends on the mood I'd like to convey. What inspires me most to paint is the possibility to design using exciting compositions. In most cases I build my works with value contrast, although I also use color contrasts once in a while. My ultimate goal with watercolor is to keep exploring its virtues, i.e. its spontaneity and the liquid quality in it. A never ending discovery.
His work can also be found on his personal website, herryarifin.com.