the advantage of the black and white is that it corrects for the purple fringing along the edges of branches with highlight backdrops ...
Not that this is your fault, just an issue of shooting in this sort of situation ...
my response to this is always to covert to b&w ... or tinker with the corrective features in lr
I like what Chris did with the BW version of # two,...but I agree wi' Rob about the color of the rocks. However, I think both the color and the BW versions can and should stand as two distinct images--no need to pick one.