Dry brushing is essentially exactly what it says it is, dry brushing. The whole point is to highlight the high points on your ground work in much the same fashion that the wash darkened the recesses.
When dry brushing you need wide flat brushes. I have several I have been using for a long time. Soft bristles are great pretty much any wide flat brush will do:
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Next I am using the same paint tray I used for the base coat and the wash. I am also using the same "Fawn" color paint I used for the base coat and some cheap white craft paint.
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Put about equal portions of both colors in two wells on your paint pan:
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Take your wide flat brush and put some of your "Fawn" colored paint or whatever color you used for your base coat and add some of the white on top of it.
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Blend and pull the two colors together. Like this:
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Now you want to wipe almost all of the paint off the brush on a rag, towel or the back of your hand. Using a rag here because I got tired of explaining the dunklegelb paint on the back of my hand at work:
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Next you want to kiss the high spots on the base with your dry brush that has almost no paint on it at all. Use really light strokes and just touch the tops of the details. I did not take any in progress photos of the actual dry brushing technique and those would be really handy. I will get some posted. In any case it should look some like this when you are done:
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