many thanks, Mahnmut!
Yes, it's a rather bleak vision of a future Mars...and it gets bleaker once you view the work and realise that none of the spacecraft are fully functioning any longer and whatever interest we had in that landscape had passed, for an unspecified reason. The spacecraft futilely continue to partially function, to attempt to find signs of life, possibly transmitting the data back to no-one. Not a pleasant thought at all, but depressingly, not an unrealistic one either given current scientific outlooks.