You can get any colour paint you like in any strength - 1/4, 1/2, 3/4 or full - its only a colour, so they will mix it to your request. Have you made yourselves a colour board? if not, you will need to get all your selection colours together and then go to bunnings or a paint shop and get some sample pots of the colours you are debating. (yes it will cost to get sample pots, but seriously you need to do it - and get the varying strengths in the same colour as well). If you are worried about the render colour marking, go the 1/2 strength on the render and 1/4 on the mouldings. Your Wow factor will come with your varying textures - brickwork/render and trims/timber doors, and the wrought iron. I'm guessing you have exterior lighting? some beautiful exterior lights will be the icing on the cake.

Maybe paint facials white and put some white cladding in front gable so eye drawn to that not windows not a blue tinged white eg not dulux lexicon but warm white to go with cream blinds eg natural or polar white or grand piano 1/4 strength would also go nicely with woodland Grey and jasper - cb basalt also goes nice with woodland Grey maybe go 1/2 strength on walls as it’s a nice neutral black/Greywhixh would detract from purple tinge

I wonder how much time you might have to spend cleaning the roof behind the parapet, perhaps the rain will take care of that, leaves?. If you were going to use these spaces as terrace you would need to adjust the height of the parapet or add a railing, if not the height of the parapet could be reduced

What are the houses (street / neighborhood) around you like? Many houses being renovated and moving away for the original designs? Or, more minimal cosmetic facelifts? With your spotted gum decking, you'll have a timber clash with the front door. Might need to work around that as well as maintaining connection to the street / area. Kate is on the money ... put the new deck in and upload a picture then. Too many variables with how the deck will look when finished vs the front door and style of the home etc.