Here it is in pencil, not finished yet. You can see the horizon line in the middle, and part of the pieces of tape that had my vanishing points on them.
This is the drawing in sharpie. To show depth, I drew objects closest to the viewer with thicker lines, while farther away objects have finer lines. I liked how it turned out, but I was afraid I'd mess it up when I added color.
This is the completed piece. I used blue and orange ink, showing depth by using brighter hues on objects closest to the viewer and duller hues on objects farther away.
Click on the images to get a better look!