You have brick at the foundation line, do not use stone on the face. Too many siding types are not conducive to a good look. I do not think your mockup siding colors will go with your roof as the rendering has a completely different roof color.

I would look into green color scheme options. Definitely move away from grays.

the white windows are fine with a softer trim, like a creamy beige, especially with black shutters.

IMO you never mix stone and brick on the same house so big no for that plan I think the brown is OKAY I actually like the gray better but not the shutters are all wrong color . in the original. I would be doing a more grayed green siding and one done you can decide if shutters in black can work or not I thinl some great interesting landscping will be a big impprovement too. Since residing anyway you might want to get rid of the arched window .

It's sort of fun to look at options on the Georgia-Pacific website. Hard to tell the color of your roof which should be considered with siding colors.

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