Gray roof is good. I would not go with the black trim. Black paint and even black metal fades or oxidizes and shows spider webs, dust and damage more than lighter colors. Maybe a gray-blue or gray-green trim? To me, cream siding close to the brick color would be good with an interesting trim color, but it would have to be a good match. And maybe paint the stone in front by the trellis the same cream. There is a school of thought that garage doors should recede, so match the siding, but your's are front and center so you may as well make them look interesting. There is the concern of maintenance requirements on exposed wood garage doors, though.

I think a gray like Kandall Charcoal would look good. I would paint the rafters reddish brown to look like your fence. I think white on the trim would work.

The Alberta Spruce seems too big.

Charcoal gray roof.

Thank you everyone, these are all such great suggestions! I love the look of the grey roof and siding in your design, houssaon. I also agree that the spruce needs to go - we removed a matching one in the other side last Christmas and plan to utilize the one on the right this Christmas. Also, great to know about the maintenance issues with black paint, msjoan. I would never have thought about that!