Here the lines are inked and a light wash applied. I'd lost some alignment during the penciling in of the pattern against the grid. With the ink, I was able to tune in the lines. I felt a lot better about the pattern after that. I'm using a T-square and triangle against a watercolor block that's sometimes a bit shaky. In my technical drawing days forty (yipes!) years ago, my drawing paper was taped to a nice drawing board, a fine and secure arrangement.
About three hours here. Next up is to work some texture in. These are Winsor & Newton watercolors--Yellow Ochre, Burnt Sienna, and Cerulean Blue. This image was from the camera; the scanner made only washouts. More tomorrow! :-)