In Sun's watercolors, the proliferation of touches and the density of color can make the history of the picture's making seem secondary to the impact of the shifting expanse. In his limpid watercolors, process and effect are equal partners. Each thoughtfully placed mark remains distinct, at the same time that the entire fabric of strokes plays with your senses and your sensory memories, triggering wordless associations and then returning you, once again, to the fact of his repetitive, dispassionate, but intensely personal touch