I agree, this has a great mood to it, due to the lighting of the scene. I'm wondering if just a hint of another color, even something maroon or crimson, could add even more of the effect you're driving at. It's just a personal opinion of course. Perhaps another small dab of this color could make it "pop." Sometimes an overall earthen palette just needs some more variation to give it more dimension and flavor. You have cooler tones in the sky and some pinks towards the foreground, so there is some variation. I'm just wondering about pushing it just a little further; "carefully" of course.