I don't think you can go wrong with a large timber door. The colour should contrast with the granite nicely and will even help soften all the colder surfaces. Have you seen any doors you like? https://www.houzz.com.au/products/front-doors-prbr0-br~t_10816

I say go for it as your door is the window to your home. My advice would be to consider the colour of the flecks in your brick to make sure your chosen colour works with it and not to forget about the colour of your roof and window frames. For example I would have loved a red door but it would have looked ghastly with the green roof on my 25 year-old house. Instead I did black with dark grey window frames (which truly just look black) which works to pick up the black in the brick. I added my big pot plants with green foliage and still got a touch of red in the form of an old chair I picked up from an op shop years ago. The entrance is welcoming, attractive and reflects what is waiting inside. Have fun and if your chosen colour isn't quite right do what I did and find a way of incorporating it into the scheme somehow.

Yes. Axolotl are amazing! I have sourced a company in Melbourne who pretty much do the same thing. It's Metalcote in Cheltenham. The bronze/graphite sample I have attached to this post is from there. It's liquid metal. Axolotl are in Sydney and the cost of transporting door to and from there, plus cost of coating, is way expensive. Coating alone, minus cost of door, is around $2500+/- I figure for the same product I won't have to pay for return delivery of a heavy door

Hi Wren, what a lovely setting! I would be inclined to match the door colour in with the exterior wall colour. Include the casing, threshold and trims as well and this way you will end up with the timber, black and your main paint colour to give a better sense of balance. Good luck! Regards, Kathryn.