progress so far ....
Still a little way to go but here is a quick update. I'm waiting for the paint to dry before working on it further.
You can see a bit of pentimenti* - the copper shape shining through in the trees at the back - some will remain but the unnatural shapes, like the circle and almost triangle, will be lost/adjusted in subsequent layers and glazes.
*Isn't that a nice word for an altered underpainting showing through?