Some thoughts on plastic model brick painting.
Working on some DPM kits I decided to dry brush brick faces after base painting the whole structure with a mortar color.
I think this does work pretty well but is very time consuming, if you are being careful not to get too much paint on the brush, so it does not run down into the mortar. I want to try some other methods including the Roberts Mortar, and see if it works as well and is quicker.
There also was an article in RMC or Model Railroader about washes of color for stone and brick, a short time ago that seemed really good, but I can’t seem to find it. Anybody remember an issue about this?

Dry Brushed Bricks