>>4499817Crop a little from below, that much close foreground is distracting, at most 10% of width.
Also if you have the ability to visit this location again they try doing star trails, i see some bright stars, that will give some good trails.
Also the sky would most likely become blue, if you take the whole evening or pre dawn. But i wonder if that purple hue that one gets from a setting sun, if it is possible to capture in a star trail shot, given for how short it exists, maybe fking around with the white balance might do it.
Also take a hdr composite, if you feel like adding detail in the hills