Some more sketches... And a big project

Here are a few pages from my sketchbook over the last few days:

Also, I've been working on a large drawing since September. It is five feet square, drawn with India ink pens on Fabriano paper.

A full view of my progress so far. To give you a sense of scale, the yellow ruler on the left is six feet long.

Close-up view of the section I'm working on currently, before I broke up the white space in the middle.

The same section after I finished filling in some of the white space.