To be fair. Pictures can never capture a Huntsman right 'cause the most significant things about them are their size and speed. Unless you have a scale in the photo, a Huntsman looks like nothing (note, the Huntsman in that photo is probably bigger than your hand), and unless you're watching a video, a Huntsman at rest is really pretty boring.
Dryad Bark.For the one in the pic, base white, drybrush ... Dryad Bark maybe in select spots covering ~60% of the mini, Agrax Wash everything, and you'd be 90% of the way there. Maybe a very light drybrush with your favourite off white to bring out the highlight on the bits you wanted to remain white.
Derp.
I'm an idiot.