I just got a new "toy!" It is Derwent Tinted Charcoals and they are watersoluble. Currently, they are only available in the UK and I ordered them here www.artifolk.co.uk
This is just a quick little scene I did to give this new toy a test run. The background mountains were drawn and colored in using a variety of the charcoal tints, then water was added with a brush to blend. The sky is DS watercolor and the lake is a combination of the tinted charcoals and DS watercolor, as is the foreground. It is done in my Raffine sketchbook.
The charcoals go on just like regular charcoals, and they blended very easily when I added the water. As you can see, they don't completely dissolve, which I rather like as it adds a neat texture. I like how the combination of the charcoals and paint worked to give a sense of depth in the lake. In the foreground, I drew the grasses with the charcoal and then washed over them with watercolor. I look forward to working with these pencils again!