50 shades of moss green

Well, at least somebody's happy with the damp and ridiculously mild winter. The moss in Fleshmarket Close is clearly thriving. I'm guessing it's more than one variety of moss, or is it maybe lichen?

There was a homeless guy watching me from a niche near the stairs, I almost gave him my change, he had an old looking dog with him, but then his phone rung and he took this brand new mobile from his pocket... I don't think so, you're not getting anything from me, you cheat.