I had been contributing to travel photographs in digital pastelmatic color photos, almost black and white in nature. It prints better that ways, rather totally B/W. Here is the one I did in 2017. https://goo.gl/maps/SQBLB4jaivqYHAnh6 Enjoy.
Here is a sample of the image of what I meant by Pastelmatic.
I was very fond of Black and White photographs during the analogue days, partly due to the simplicity of processing the negative, ease of developing the prints, and the prints could last for many years. Of course, the cost of negative, developing chemicals and papers were so much more economical compared to the colours photographs. Moreover, the chemical for colour developing oxidise so fast that they expired and become useless very quickly.
When the digital photography became available at an affordable price range, I started with a hybrid system and eventually completely digital. For the highbrid system, the analogue photograph or negative were scanned into the digital file and then post process for publications or output into manipulated images. It was during this process that I thought of Pastelmatic photographs to differential the Black and White analogue photographs from those taken with a digital camera. That way I could through the photographs I had taken purposefully marked them so I could immediately see the process involved. Another advantage is the printing of photographs using the CMY or CMKY printers, with the Pastelmatic photographs, it adds a tinge of the full colours ink giving it a much better tonal range, resulting in a nicer print.
As I start seriously with the Canon digital camera, my preference for batch processing the photographs is using the Digital Photo Professional application that comes free with every SLR purchased.
For Pastelmatic images, it is a simple process of reducing the Saturation to near zero and sliding the Hue level to the desire effect. It can also be done with Photoshop or any other digital image processing application.
First launch the Cannon Digital Photo Professional application, then select Edit Image on the top right corner, then go to the top left to select Tool Palette, then click on the Tab to select Color Adjustment. In this Tab, slide the Saturation Tab to near zero, my favorite is between 5 and 10, then slide the Hue to left or right to select different emphasis on the color.
I hope this help in explaining.