Skydome rendered with Terragen:

Two suns, one large and cool the other small and hot give varied lighting in areas where the light from only one of them reaches a surface. The wide spacing of the suns give areas of full shadow and patches of half light; some cold and sharply defined, some softer which are warm and red shifted.

Partly reflective surfaces will show twin bright points with colour variation. Fill lighting from the partly clouded sky is medium strength and slightly blue shifted.

Lowered horizon and flat fractured rock ground viewed from a standing height of 1.7m but not obvious if seen from higher.

Note: The preview image uses the Filmic colour transform.