I picked up a wonderful pine cone on a lovely hike. It was a long day and I took some photos and left it on my table overnight... and in the morning it was a different pine cone!
I drew it in my sketchbook. And then I added an overlay and drew it from a photo - as it was before. Because this is a gouache page and might smudge a bit. But mainly because I was still not over the change that happened overnight!