Instead of taking a photograph with my Pixel phone as I usually do with pencil and paper sketches using the standard camera app, I tried using this app called Cam Scanner. I’ve used it before for scanning documents and certificates and printed stuff but hadn’t really tried to scan drawings with it because it darkens grey lines and eliminates mid- value tones, so a lot of subtle tones and faint lines are lost.
However in this instance it worked pretty well because the whole point of this exercise was to sketch in lines. They’ve come out dark and clear in these scans, almost like ink pen drawings, although I used a 0.7 mechanical pencil.
The Third Floor Corridor 