I've started to crack on with painting the boards. I picked the park board to start with as it looks incredibly bland without any paint on it.
After washing the board with detergent and leaving it to dry I roughly blocked out the park area with black spray. I also splurged a few other areas with black as an experiment to see if I could use this to vary the tone of the boards in those areas after priming (it didn't work). I then I used masking tape to block out the park area so I could prime the rest of the board surface.

I put a layer of halfords grey primer over the rest of the board surface and then masked off areas to use a lighter grey spray where the pattern changes to introduce some variation. I then oversprayed small sections with black and the two greys to break up the colour blocks and make it look work and used.

I then brought the boards inside to apply some highlights and washes. If this board is anything to go by then I am going to get through industrial quantities of dark tone ink and lahmian medium before I'm done. After applying the diluted wash to the cracks I wiped the excess from the board surface which gave a nice worn look.

That board still isn't finished as I haven't washed and highlighted the brick tiles yet. There's also work to do on the black area to mark out parking bays which will be a new challenge for me. Overall I'm pleased with the progress so far and can't wait to get cracking on the rest of the boards.
For this particular tile I also need to make a green park insert and other little touches too.