It's a hell of a terrain to start with, anyway. Very nice, I mean. Perhaps some local tough bushes, some hard grass, like in a really harsh environment, perhaps some remnants of old snow, a few lone crooked small trees, bent by westerly winds, a few strands of mist floating across/following the terrain.... it needs some point(s) of interest. Or cloud it such that you get interesting dark shadows and very lit spots, Rembrandt-like.