I agree with
@paul04, about the foreground, but I see how you got there with the rule.
I could easily make a similar error. I am no expert at composition, never have been, really. Post processing has always been my friend, but I will admit that it was much easier to learn enlargers and chemicals than it has been to loarn old Photoshop software. Do yourself a big favor and subscribe to Photoshop Lightroom CC, as it is supposed to make the digital darkroom much easier to learn.
And I thought that the B&W looked good!