Flowers in Gouache

One thing I like about painting from life is all the things that happen while you are sitting and drawing.
While I painted these lilacs several pipevine swallowtails visited hovering about checking each flower. Then out of nowhere a tiny, reddish brown hummingbird showed up.
I use gouache when I need a good purple color. An underpainting of white with yellow helps some of the green leaves stand out on gray paper. The paper I used is from a tablet Strathmore Charcoal paper in various color.