Got to work on the dreadnought finally. Messy stuff always needs to be done 1st so I started with the base which involved a fair bit of drybrushing and washes, and individually painting all those tiles.
I'm pretty happy with the way the stone work has a concrete colouring to it and a good level of dirtiness to it.
edit: Here's the paints I used to paint the concrete
basically it was a series of drybrushes followed by picking up the edges carefully with white.