An incredibly useful course. If you use watercolour, but don’t know how to layer, you will thank yourself for taking this course. I didn’t know how to layer – so my paintings always disappointed me with their strange muddy colors and “flaking” or “peeling” paper – because I would rub so hard to get a more vivid color! This course has completely changed my watercolor techniques/knowledge. I have to agree with the other reviewers, a more practical project would be nice if it could be added.