Need Help Creating a Running Bond Brick Wall with other features.

I have been exploring brick wall patterns with grasshopper and have been having difficulty with the following exploration:

I am working on a definition that tries to generate blocks/bricks onto a selected surface geometry and I need to be able to control the quality of the brick/surface so that it is 'unique' in specific areas. These specific areas must vary in width opening and possibly start to rotate the brick. How do I start something like this? What methods/components must I first understand in order to tackle this problem? I'm including some images of what I'm talking about. Any advise will help. Thanks in advance.

JN