for painting a deeper tone of red, basecoat the model in a 50/50 scorched brown/dark flesh mix. then use scab red followed by a final highlight of red gore...
like hairy says, i'd keep to the traditional colours of khorne; red, black & brass.
add things like skulls hanging on chains for some added detail along with lots of protruding spikes for maiming the enemy as you drive over top of the helpless fools!
cheers!
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"Who are you to question my methods?! A 'Puritan' is simply a coward who hides behind a veil of pretended faith and denounces his loyal brother as a traitor out of simple jealousy!"
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