nostr:npub12uq2ptplq5855q4c0wu732f4xj0jvam6qznhjlvnzw4lxrgk5enqw7l9er To get the overall structure correct I often do, but not always. The details are generally freehand and I don't worry if they are a little wonky. Sometimes, as here, I draw in pencil using a ruler much of the time, then ink (sepia) largely freehand.