Stonehenge black watercolour paper is now available, and it's made with 100% cotton too. Check out the different sizes on Jackson's Art (UK).

These could be good for gouache.

Check out Miguel Antelo's "Hansel and Gretel Storybook", a fresh take on the classic children fairy tale with a twist. The book is going to feature beautiful full page illustrations.

The book project is currently looking for funding on Kickstarter. More details at http://kck.st/3182Is8

Campaign ends on June 30 2019.