After the flesh is finished, the entire carapace and talons are painted black. The carapace is then painted with purple and green streaks. I keep the paints pretty thin – the idea is not to give a visible streaking or blending, but for the carapace to appear black from a distance – but then change colour slightly in different angles/lights. Kind of like oil or a beetle shell. To be fair – its not 100% how I would like it, but its something that I can practice more with each model painted.
The carapace edges are then drybrushed yellow.
Minor details like tubes/eyes/bony bits are painted, a gloss varnish is applied, the base is painted up and Bob is your too-touchy-feely uncle!