I hear you, being a mum is a big job & not for the faint-hearted, hehe. That was sweet of your husband to do all that for you. As your ceilings and skirting and architraves are white, maybe a fresh white would really lift the whole house. There are many shades so my advice is to visit your local paint store and look at the whites. Hopefully, you will be able to narrow it down to a few. Of course, other colours might appeal to you as well, so just see what takes your fancy. Also, have you looked through the kitchen and living room Houzz photos to see if any particular room colours appeal to you? That might be helpful too. :)

What natural light do you get in the room/what orientation? i.e. is it a 'cold' or 'warm' room? If it's a colder room, I'd go with a grey with orange/red undertones to warm it up a bit, or if it's a warm room you could get away with a cooler grey, maybe green undertones to compliment the maroon. Or you could even try a green rather than grey. The Aerobus is a blueish grey so will be cooler. As others have said you would probably want a lighter tone than this for the walls (unless you're purposely going for a dark dramatic mood). 'Miller Mood' is a couple of shades up in the Colour Atlas. Get sample pots and paint a section on each wall, or paint a white bit of card and stick to the wall to see how the light is at different times of day.

I have got the sample pots and I’ve painted them on large cardboard, it’s more the benchtop I want to blend in nicely, as well as splashback. I know I won’t find the exact combinations, would be nice to see one or two of the colours to get a more visual idea. They aren’t the popular ones like lexicon and all the mainstream dulux whites. So the bricks have all been removed, and under the bench is just going to be the same as the kitchen cupboards. The brick pier has been Gyprocked. Do you think a smoky mirror splashback will look good?

You could try Wet & Forget on the driveway. You can buy it ready to use and attach it to a hose or buy a bottle that you dilute to use in a sprayer. I have used it and it works - slower than water blasting but it won’t damage driveway if it has some damage? I can’t quite tell from photo if that’s grass clippings/mulch or broken concrete on driveway? If you use it be careful not to spray garden bed. I live in FNQ and we planted seaside daisy - doesn’t need watering but it also won’t die from our wet season. It’s a ground over and spreads out beautifully in a courtyard area that’s get a lot of sun. Just needs a trim from time to time. I see you have Rio (purple green ground cover) which you could separate and plant down the path but it does like water. Maybe for the fence you could try attaching lattice to it and plant another passion fruit vine to help cover the whole fence. It does look like you need to get rid of some woody parts of the passion fruit. It’s a tough plant and will enjoy a bit of pruning. We had one that I thought had died last year and it has returned with no help from me. Be careful with the heliconias and gingers ... they can get out of control if you don’t stay on top of them. Anything tall will cover your fence but it will also cover the passionfruit vine which obviously loves the spot it’s in. Good luck!