The paper support from the previous post just didn't feel satisfying so I brought out one of my new birch plywood panels and transferred the design. I began with a grisaille underpainting and then explored glazing lightly. I was working from a monotone printout posterized down to just four or five values on the lily.
I then mixed strings of yellow into brown--cooler colors for the highlight and halftone; warmer colors for the local color and shadow. I spent a good deal of time standing back up to ten feet or so, working to get the form to read well from a distance.
I'm now going back in, developing detail while holding the overall values in place.