So I took a crash course in brick painting, decided to experiment with a couple of techniques.
First a not too carefully applied spray of gloss black;
Then some patches of white;
...then some random splotches of various greys. I used about 8 in all.
Then with a partially dried brush I very messily applied some Life Colour Rust 2, making sure to slop it everywhere and into the cracks between bricks. I then wiped off the excess with a slightly damp piece of paper towel.
Then using the dot filter techniques I applied some various acrylics, yellow, browns, olive drab and some metallic blue to try and capture that glazed enamel look some bricks get;
Each phase was worked into the texture with a dry brush, last of all was some more Rust to tone down some areas where there might be a bit too much variation.
Finally I used a very heavily thinned oil wash in grays then black. I got this to run into every gap between bricks. The dark colours then applied in random splotches to help simulate areas on the brick work where cracks may be more prominent.
Once the oils dry I'll probably have to apply some more to work up the textures.
Cheers
On the bench: A-4F 1/32 Hasegawa
Just deployed: F6F-5N Hellcat Nightfighter 1/48 Eduard
Up next: A6-E Intruder 1/48 Revell