I'm often impressed with how different the same image looks in B&W to colour. Sometimes suggesting a more moody atmosphere, sometimes just more minimalistic. Sometimes quite retro.

I'm going for moody with your shot above. Really love that it was a rainy day, but there was a moment for reflection, and grabbing the tree in the rain pond.

Here's a B&W I like at FunkHouse: https://www.instagram.com/p/BWfFqAhFfb9/