We're about to begin a major remodel of our home in Austin -- primarily the addition of a second floor, and the addition of a storage area near the garage. The facade is primarily limestone. Here is a photo of the front of the house from the street (the garage is the part of the house on the right, and faces the driveway to the right).

And here is the new elevation of the street-facing side:

We are planning on cement fiber siding for the additions (2nd floor, and the first floor ell on the right), and the new roof will be unpainted metal.

I've been looking around and color schemes involving limestone and wood appear predominantly cream or brown colored. There are (potentially) two different widths for the siding planks on the bump-outs, so there's an opportunity to pick contrasting colors for the different siding. We'll be getting all new windows, so we want to nail down a color scheme to help make a determination on the window cladding color we should select.

Thanks in advance for your ideas!