I add layers of hatching and stippling, just as we did with the foreground objects about the still left-hand aspect. Generate a slit in to the feather in the suggestion on that flat finish. This slit will go up to the hollow Section of the feather about ¼ inch. https://howtodrawaquillpenwithink33209.bleepblogs.com/34739943/top-quill-pen-art-tutorial-secrets