I always wanted the Marquis to be a black and white book (with certain spoiler scenes for those who haven't read it, in values of red/orange). For the original series collected in the new Marquis: Inferno I did all the grey tones by hand using Chartpak shading film~ laying the different textures and values down on the actual artwork and scraping off highlights with an xacto or with whiteout. Yeah, it was time consuming and tedious~ and later on it was harder to find the actual tone screens to use.
For the new Marquis stories I learned how to mimic the tone screens in photoshop, something I used to swear I'd never do~ but I was won over by how much time it saved and also it made it easier to change my mind if I didn't like the look of a certain tone screen. In the old days if I wanted to change something, I'd have to peel it off the actual artwork~ and Chartplak didn't give up without a fight and usually took a bit of the inkwork with it!
The Marquis and the Coachman was a good test to see how the digital versions of the tone would match the original Marquis pages~ I did the test panel (above top) and was able to match all the old screens used, but it didn't sit right with me and the artwork seemed dated and off. So at the last minute I decided to start doing the cleaner photoshop greys (above bottom)~ and will go this route for the remaining Marquis books!