I little variation in the color palette would do wonders.. widen the hue range, to reach the red and blue.. of course it’s difficult to decide, because widening that range could render things over-contrasted, unnatural. It’s also a matter of simulation.. light, temperature, humidity and dust/aerosols/clouds decide together, most of these things are difficult to model. Changing a color is easy.. to get it real is the actual challenge.