I update this with the sad reality that water based colors on minis stink. Maybe the photo doesn't show the sad dwarf on the right at his worst, but in person the shield is off base. the metallic colors are still in fact Citadel paints, but the rest is basic watercolor paints -the water.
That's what i get from reading how-to online!
All in all acrylic from citadel paints look alot better as you can see from the dwarf on the left, the musician, and keep in mind these are just base coats. the varnish is nicer. Nothing has pooled and nothing looks cracked.
Next i will be trying out Acrylic based paints of a fairly cheap kind, with finisher, washes from Citadel and metalic acrylic from...Folkart. Why not? And I will be applying it to a frightening group of Dark Elf Corsairs!