My watercolor class was taught by Mr. John Louder. In his class we were taught to embrace translucent applications and to avoid white paint at all costs. Overall it was an excellent class and really helped to develop my appreciation for watercolor as a medium. For me, learning to stop painting was a major struggle. If there is one thing that watercolor is excellent at teaching, it is that too many adjustments will destroy what you have spent so long trying to achieve. It teaches you to be willing to move on.