Above: Major navals ports and strongholds will be represented on the map by some lovely buttons and stamped steel brads that I picked up at the local sewing shop. Each major house will have it's own sigil hand painted on a shield, which I've taken from my Warhammer parts box.
Below: The Wall, sculpted and ready for undercoating. I used some balsa wood for the core, filler to build it up and then the rotary tool to shape it.
Above: The fully textured, completed board. At this step I would have scribed 'Westeros' into the title plaque at the top, but I hadn't yet decided if that was what I was going to do so I left it till later.
Below: Three thin sprayed coats of flat black water based paint later (don't use gloss or oil based paint). Once you've undercoated the board all the texture will show through. This is the final stage that will allow you to adjust the texturing and then recoat easily, so make sure that it's 100% how you want it before you pick up a brush!
Stage 2 - A few more layers of grey and then some more turquoise on the flat areas.
Stage 3 - Building up in heaviness to a fine light grey stipple.