I have been working on this wizard some more, and I am happy with the progress. I have removed some (not all) of the shine from his robes. I created a new paint additive, using a mix of matt medium and flow improver, and used this to make a dark purple wash, which I applied to the robes. I also used this new creation and made a black wash, which seems to perform a lot like GW's Badab Black, but I need to test it some more, before I can say, it is the same sort of thing. You can see this black wash on the wizard's hand, the one which is hold the staff. It looks like the old fashioned "Black lining", that used to be painted on minis, back in the 90s. I also created a new flesh tone, quite by accident, but I think I like it more than the "official" flesh colours produced by GW. Again, I will need to experiment some more, and see if I like it.