Tree in Forest B&W

I like the visual patterns here. However, I think you've pushed too much of your range up toward white, so the top half (and the highlights on the chairs) looks more like a pen-and-ink drawing than a photo. Pulling them back down into the grey range would add more depth to the photo.

I also found myself bored in an airport a couple weeks ago and snapped a few B&W shots (similar in mood to yours) with my P&S camera (all I had with me). One of them turned out reasonably well, but I don't have it online yet to share...