After the oil washes, I gave the parts a coat of Vallejo Model Air matt varnish. This didn't go very well, everything gained a white-ish hue and hide all the nuances I had done with the oils. Thin coat even, I don't understand what went wrong. Ended up applying the static grass/flock and seal it all with Testor Dullcoat, the best matt varnish I've came across and which I probably wont be replacing with water based varnish after all..
Bought that flesh tone but it's too light, ended up using that brown and red+yellow to get something more natural to my eye. Vallejo 886+920 for the tunic and 830 for the pants looked good to me this time, my painting method is far from being rigid.
Anyway, comparing my results to some paintjobs at Benno's Figure Forum, I know this might not be that great but I had a lot of fun as usual.
And here are some links with pics of uniforms and other reference: