I wanted to do an experiment with matte medium and Charvin Paris Water-Soluble Pastel Painting Sticks. First, I printed a Black & White copy of an image of roses on bond paper. (The original colored photo is shown above. I believe the image is from The Graphics Fairy).
I painted matte medium on the B&W copy and let it dry. Then I colored the roses with the pastel sticks. I like the shabby looking results of the roses as shown below.
I also tried this experiment with glossy photo paper but I did not like the end result. I may have brushed on too much matte medium with the latter. I will have to experiment some more.