looking through older images, and found this..
once up a time, there were a fantastic chemistry, made for silk colouring..
I by mistake dropped some of this on a photograph, and found it to be amazing if you want to handcolour your images.
it worked especially well (and easy) with plastic coated papers, but could also be used on fiberbased images..
interesting enough, if I started out very dark, I could lighten the image, using lighter colours (they replaced the underlying colours) or water..
I had a lot of fun, but the factory must have noticed my excitement, and they quickly stopped producing this colour...:(
(I still have some left though..)
I'll show you two images, done this way.