I absolutely agree with Jack's tweaks. It's just a hair bright and the face is a washed out. Otherwise I think it's an excellent photo.
LR is nice for B&W conversion, but there are more effective tools. I've got some tricks for doing it in PS/PSE that work nicely over the standard desaturation methods that I need to share (
maybe later today - DONE!!), and Nik's Silver Efex Pro 2 is an awesome black and white tool.