A few days ago i posted some line drawings I had converted from public domain illos for old school fantasy games (see Free Drawings from Photos for Old School Games). I was asked if I could do modern stuff for games like Shadowrun or Top Secret clones. I played with this in my spare time over the last couple of days and have come up with the following. My technique works for modern stuff but I think I will need to play with it more as it doesn't seem to work as well on modern stuff as I would like. Anyhow, here are a few images I did. The original picture were under a Creative Commons Zero (aka basically public domain) license -- as are my sketch conversions of them.
City From the Air
City in the Fog
Scientist working in a Lab
Spacecraft in Orbit
While I am not as happy with these as I was with the pictures I posted a few days ago, I think I will be able to improve modern conversions with practice. I think part of the problem is there is a lot more "bright and shiny" stuff in modern era photos and that gives my current conversions system issues. I know one of the pictures I tried to convert (but did not post) has lots of problems with the shiny plastic in the chairs people were sitting in.