I have come really appreciate WarPaint’s Quickshade for my 10mm and 6mm, but most all inks will work. It’s quick and easy [the important part], pulls out all the detail and if you want to dry brush highlight, looks even better. Blue, Brown and Dark shade is really all you need. So a medium blue for the coat, light blue for the pants, blue Quickshade, then the flesh and details. [The Quickshade will make the blues a bit darker] Or medium gray and Dark Shade. Simple with ACW.
Brown for butternut and/or flesh. It doesn’t take much work, much Quickshade or much talent to do it. I like the looks of the figures.
My first miniature armies were Airfix when I still in high school. My boys and I were still using them when they were growing up… They finally were so dried out they became really brittle.