For my 2 cents worth, I'd paint out the garage door (and it's trim) in a very light colour so it goes away. Right now it's the first thing you see and that shouldn't be happening, so something closer to the white would help. The first colour scheme that struck me was using that roof as a starter and going a very light grey or a colour with a grey base (you can find most colours available with grey bases) on the garage. I'd pick a very dark grey for your shutters and veranda railing and like the idea of a red or rust for the door. To me the door needs to be different, stand out, and not be the same as the neighbours so you have your pick there.
Also, when you do look at paint, know that when it comes to exterior colours you have to go much darker than you may think. The sun just blasts colour so always always paint up some sample boards and take a look at them when it's bright and sunny out. I'd also avoid pure black because it might look faded vs having a very dark version of grey or navy or green or brown which seems to hold it's own over time vs every looking really faded. I can tell you the last house I had the paint looked nearly black in the tin but when it was on the fence, it was just a medium dark green so it can be really deceiving.
Sorry, I am not taking to the brown samples because of your roof and think you need to really stick with colours that go really well with that grey. The lighter tan you picked seems like it might be okay (looks like a grey base on my monitor) but the darker tone seems to warm.