This is the arched vault of steel and glass that spans the one-block section of Pike Street between 7th and 8th Avenues. On the right are entrances to the Washington State Convention Center. The difficulty here is conveying the transparency of the span. I first drew both the transparent plane in front as well as what one sees beyond, lightly, with broken lines. I then reinforced the framing elements of the vertical glazing to bring them forward.
Here is a view that I sketched 4 years ago, looking down Pike Street in the opposite direction.