Can't go wrong with charcoal in my opinion, love it. Classic colour.

frcrooks, I wouldn't be changing the garage doors and removing the garage gable as the front of the garage will look like a poorly proportioned aircraft hanger. I think you have a good starting point with the teal garage doors and acid yellow front door. One of my clients lived in a very conservative suburb and trusted me with a choice for acid yellow cladding to the entry. Now that it is finished they love it and they get lots of compliments from neighbours about their exterior colours. Best of luck, please don't do another drab Melbourne colour scheme, and consider engaging a professional colour consultant who understands the architectural style of your home. Dr Retro of Dr Retro House Calls

Terra cotta tile can be cleaned in a day, If you reside too close to salt spray, unglazed terracotta tiles will not last, don't know about glazed

always prefer Colorbond steel for a new home