I think it's pretty clear how art is made. But not all start with a sketch, some don't even start with an idea. Yes, the realistic drawings or the ones that depict real buildings need a sketch or a reference image or even both because they require insane precision in detail to capture its charm. But, some drawings begin with just a blank paper. No idea, no sketch, just drawing. The first line is drawn and then the second and soon my mind starts materializing ideas, I start seeing the drawing in front of me and draw subconsciously. The drawing takes over, I feel like I could draw for hours.
For the town drawings I usually make an outline of the town. I position the buildings and make windows. After doing that, I slowly start adding extreme detail to every part of the drawing. It always takes a lot of time, but art takes time, it's not a secret.
At the very end I spray all drawings with a graphite spray.
Vestigia Process