Rusty Metal and Mossy Wall

I drive down a road most days with a stone wall down one side which has a lovely furry layer of moss on it.  I decided it was about time I stopped and took a photo of the wall because it's so striking.  Imagine how pleased I was when I noticed that there was bits of rusty metal on top (I'm assuming they're remnants of a railing that used to be on top of the wall) that you can't see when driving past.   I love the colours, textures and the jaunty twist at the bottom of the piece of metal and the lush green of the moss.