Thanks the orange colour is the direct application of Games Color 72008 (orange fire) over a black imprimation base color.
It also work great (I think) with black imprimation, then apply GW blood red and highlight with orange fire. At first sight, while painting seems to be a very abrupt jump of colour, but when finished, the it makes a hard contrast good to see in the table in a 10mm game.
The next unit is a chaos chariot. They have some humble conversions. The pics are not too good, a shame


