With the stonework picked out in different colours, we can move on to adding some highlights. We will drybrush this on using Army Painter Brainmatter Beige and a makeup brush. It might seem unusual to some, but a makeup brush is an excellent tool when working on larger items, such as terrain, as they have a large number of bristles and are very soft. This is ideal for working a drybrush up in several layers if you wish as it can carry more, or less, paint than other brushes we typically use.

When getting the brush ready, we can add as much, or as little, paint as we want, making sure to remove as much as possible form it before applying the brush to the model. The sheer size of the makeup brush means that it holds more paint  and can work for a longer time while drybrushing. And the overall effect is a very light coat.

You can see the comparison between the lower part of the tower and the drybrushed upper part. It adds more depth to the model by giving the surface a uniform light over it, while keeping the recesses darker and not obliterating our previous work on the colours of the stonework.

At this point, it is also good to drybrush the interior of this part of the tower, just to add some simple detail and make the darker inside more interesting.

Now we can move our focus on to other areas of the exterior that need drybrushing.

The upper part of the tower will be drybrushed with Army Painter Matt White. This way we will get a better effect of the rendering used in the areas between the wooden banding.

The primer, in this case, gives us a great basecolour to drybrush the white over, leaving hints of it in the recesses around the wood which adds a level of shading that would be more messy to achieve with something like a wash.

We can see with only one wall drybrushed, that the primer and white work well together as a highlight and a shade. This image could almost fool the eye into thinking that one half was in shadow, compared to the other half.

Now we can move on to the roof.

Having primed the roof with Army Painter Chaotic Red, we will go with a red/organge colour to give the roof a terracotta slate appearance. Again we are using the makeup brush to help achieve this.

It's good to note during this step, that several layers of drybrushing is required to get the colour down correctly, but the end result is well worth the effort.

Now we can move on to looking at painting the wood detailing on the exterior of the tower.