Paint a hummingbird using basic brushmarks.
An introduction to painting glass in watercolor, and a bit more practice with negative painting and soft-edged shadows to show “white” objects.
Use the same basic pattern to make multiple cards. Plus, a strategy for making sparkles on water and a way to suggest natural-looking grasses.
Super-simple and minimal supplies: a watersoluble pen, a wet brush and a postcard or sketchbook. This is basically a form of line-and-wash, but doesn’t seem to be taught or discussed much. My favorite super-lightweight sketching strategy.