- Another trick is to use a light blue colored pencil (there are specific non-photo blue pencils for this) for all the structural lines. When you scan or photograph the drawing, use processing software to dump the blue channel when you convert to black and white.
- Use a lightbox to trace the finished drawing. This is a nice way to work because you can keep the original draft and experiment with it and iterate on it.
- If you're drawing digitally, use a different layer for each step. Similar to the above.
- Use carbon paper to transfer the drawing, only going over the lines you want to keep. Just make sure it isn't waxed. I used to use my college newspaper for this.
They are rendered in ink lines because that is far easier to reproduce.
A good session would leave me in wonder as I walked out of ro and could see all the light and shadows on everything. Things you never noticed before.
As you add detail, shift to the tip of the pencil. Your hand will probably smudge the first lines into nothingness as you do this, it’s not a big worry. Grab a white plastic eraser or a kneaded eraser, and go at it.
If you decide to go from pencil to ink, you can put some thought into your choice of ink to select one that dries quickly. You can also wait a bit for the ink to dry before erasing. White paint/ink does exist but it’s real hard to find some that works well in a portable pen format.