Just a quick update. I did the camouflage on my KV-1 using the hairspray technique. Then, I did a couple of washes in oil (burnt umber and raw umber). Some streaking with a rusty oil color, then stains and engine oil spills (simulated) with oil paint again. After that, I had a blast with pigments. My recipe for a pigment fixer is 1/3 matt varnish, 1/3 white glue and 1/3 water. I start by brushing this mix on the surface (underneath the skirts for example) and I use an old brush to “tap” the area with various shades of brown pigments.
Some chipping was done too, with a small sponge and burnt umber oil paint.
I still have a lot of touch-ups to do, and some details are missing (towing cables, headlight glass, machine-gun barrels, etc). Plus, I have to work on the base / diorama.
I am quite happy with the result so far. What do you think?