i think youre doing a stellar job mate, looking really good. with the grey on the visor, it could be a tad dark from those photos, but steel wool and a dullcote may change that too. i know on my test colours, i had to go with ironlak lazy grey for the dome and cheek area which is a darker grey, and then for the mandibles, i went with ironlak melbourne grey which is a shade lighter. i think its because the green is a greyish green, it needs to be darker on that area than on the mandibles, where the red plays off differently against the grey. youd hardly know they were different greys when looked at all together, and id say thats a good thing. not sure if this mite be what youre facing, but if so, a lighter shade on the mandibles mite be the right option. great work again bro!