Next up, we are dealing with weathering the model proper. Here in the picture below, the model was give a coat of Future floor wax to seal in the paintwork and further bitmapped with white and streaked with diluted Russian Green from Vallejo. Green chipping is done with firm sponge and Russian Green.
The process is to alternate between Russian Green and white bitmap till we get what we want, a high contrast. Then the whole model was given a filter of brownish black Tamiya Enamel paint diluted with 50 parts of Tamiya Enamel Thinner to prevent uneven drying by commercial turpentine. The picture below shows the whole thing being united by the filter. One layer of filter.
Then I added the sand filter and raw umber filter using oils with Tamiya enamel thinner.
The whole model after 4 nights of filters as seen below, with one of those filters being water based Vallejo Intermediate Blue with 20 parts water, 1 drop of soap water to make it good wettability on oily surface.
Then I pin washed in the details with Raw Umber and Tamiya enamel thinners.