Garage door colour help

Hi, we've just completed painting our house in dulux Dune. Now we are stuck on what colour the garage door should be? Also the mailbox and front entrance. The aim is to also have
White plantation shutters for the windows inside. Would really like some advice please

Unless you block faces south I would go a light coloured garage door due to the heat issue in garage if it is in direct sun.

Aesthetically I would match the garage door to your gutters, it looks like Monument. Then match the letterbox to the house and use dark grey or black numbers as contrast.
This doesn't take into account any heat issues (as per previous post) but would look good

We were going to use Surfmist - tried on the entrance and mailbox. Mixed feelings. The entrance looks fine but the mailbox looks awkward. So maybe the mailbox should be the Monument colour like the roof and the garage door the Surfmist? I just can't make myself go the monument for the garage door, thinking it's too much?
Also thinking of a plaque on mailbox to update a bit. Like a stainless Steel and plate look? Don't know where to get those either
Keep the suggestions coming please

I am mocking up some pics for you. Are your windows black? What colour is the front door? I know you can't really see it but it would be good to know for the pics I am doing.

Yes windows are black and door is timber stained. Thanks.

Ok, this has taken a while as photobucket was playing up. I hope that it helps.
I know that this isn't your house design but I tried my best just so you can see the colours and how they go together. The house is rendered in Dune, the windows are dark grey, the gutters and fascia monument.
If you want to play around with it more, google 'carlisle homes visualiser'.

Garage in Monument
http://i666.photobucket.com/albums/vv26/nataisha19/house1_zpsc8ccgrcz.png

Garage in Basalt
http://i666.photobucket.com/albums/vv26/nataisha19/house2_zps7d9jxizs.png

Garage in Surfmist
http://i666.photobucket.com/albums/vv26/nataisha19/house3_zpsa9gnzv3d.png


Garage in Wallaby
http://i666.photobucket.com/albums/vv26/nataisha19/house4_zpswbnz2owj.png

Always light colors matches for garage doors compared to darker ones. I think from the above images Garage in Surfmist or Wallaby can be opted. Both the colours are good.

thanks so much. Great work. Really appreciate that. I still am edging toward the lighter colour. Need to look at them a bit more

Still haven't updated colour but going for Surfmist for the Garage Door. Also need advice on the Fence? do we go timber or colourbond in a colour similar to the roof???
I didn't realise that replacing the fence on 2 sides with Gates was so expensive? I was quoted $9500 yesturday...eek