I was actually going to critique the processing a little, but the more I looked at it the more I like it.
General thoughts about B&W: Starts with good metering and exposure-check. Subject and composition-check.
It's nice to have some pure white and pure black in the image-check.
Are the blacks so black that they look like ink blots? or are the whites too blown and overpowering? Not here IMO
Then it's just personal preference on whether the gray tones are "pleasing" or "muddy", scene-appropriate contrast, etc.
I have a personal opinion on vignette. I like to be more subtle, so the viewer doesn't notice the vignette so much. There's a range of light vignetting where the the edges get just a bit darker and provide subject isolation, but you don't get that "old timey photo" strong vignette. So, for me, the vignette is just a touch strong.
Your photos are really beautiful lately, K9. I'm beginning to doubt you're actually a dog.