Gimme a Stable Diffusion prompt showing water on mars 
water on mars (((artstation, concept art, smooth, sharp focus, artgerm, Tomasz Alen Kopera, Peter Mohrbacher, donato giancola, Joseph Christian Leyendecker, WLOP, Boris Vallejo))), octane render, unreal engine, 3d render, , octane render, nvidia raytracing demo, grainy, muted