1 is awesome, cool mossy look.
2 looks too glossy for stone, not a natural kinda color effect.
3 looks okay, but I think the moss look on 1 is more natural looking though
4 agreed - not enough black wash. I would like to see it with more black wash effect
5 is okay, looks like grouting between stone bricks.

1 is my fave by far.

:D :D :D :D