Had a family friend who is a concreter meet me out on site yesterday to advise/quote for the work that we want completed.
Basically, we will be doing exposed aggregate to the driveway and pathway to the front door and the rest which is the 1m concrete apron around the house will be coloured concrete. All 100 mm thick.
He suggested we mark out what we wanted done to measure and quote and we did. Here is my VERY rough paint work :P