This photo shows the stages in painting my Grishak, the Delgon armour was done in exactly the same way as the backs of the Grishaks.

The stages in painting the Grishak backs/armour, left to right:
- White undercoat (gesso primer),
- Dull beige topsides (Vallejo, German camouflage beige - a very useful colour),
- Orange wash over the beige (an old Citadel/GW colour, the important thing is that it doesn't dry completely waterproof),
- Dilute blue-black wash overall (EG paynes grey).
- Varnish by brush (water based acrylic matt varnish), this is important as it mobilises some of the washes & ink, allowing them to diffuse into the varnish.
The final shades will emerge as the varnish dries, depending on the weather this may actually take several days even though the figures are touch dry in 1-3 hours.
Vallejo German camouflage beige (VGCB) is a very useful colour for cheaply died cloth, just wash over it in a bright ink, apply a dilute 'grubby' wash (I prefer raw umber), varnish and you have 'instant' faded cloth. The Delgons' black clothes are VGCB with two washes of black ink.