Sorry but you are kind of doing this backwards . Since you have so much roof showing it needed to be chosen first.Now you need to get sample of what you are working with and then go shopping for shingles IMO mixing the walnut with the cedar is not good but your arcitect should be showing you exterior ideas . I don’t like shingles that give a mottled look especailly where the roof is so “there”I would have chosen a natural cedar and black then a charcoal roof

Patricia, our whole house is cedar and beams are fir. So siding, trim, soffit and fascia are cedar. The beams are fir. I meant the stain color we chose is called Black Walnut, we did not go with a black walnut wood. We have been getting all of our ideas from just searching "mountain home" on google. This is a house we designed ourselves and just had someone draw it up for us, so we don't have an architect that is helping us with the design. I don't like the look of doing natural cedar. It's not quite in my budget to hire an architect or design studio to help chose everything for us.