I prefer the first over the second, as it offers some more to the eye to look at and to see that it is moss, indeed. Plus the amount of bright green is higher in the first - and that one's my favourite colour ;-). When you know how tiny those green bits really are, you can really appreciate what you're showing us with your macro photography here. I once tried to take a similar photo with the lens reversed (only means I've got for true macro). Not easy, that.