B&W is a great idea - more for me to play around with :-)
Here's a quick take on how to go about that, without caring to do anything about the straws in the foreground:
I simply used an adjustment layer for hue/saturation with the following settings:
The image may also benefit from B&W conversion with split toning, e.g. in Lightroom:
Settings (B&W conversion at auto):
These aren't meant to be anywhere near final results, just starting points for further adjustments; I didn't spend more than five minutes on this, including making the #/&"$ screenshots.