Thanks for the candid feedback, everybody.
The other day I read on some forum (it might've been this one) a comment from someone saying that when a photo is not good enough then no amount of post-processing will make it good. In my mind I agreed 100% with that on paper at least.
But then I thought... When we see a photo that moves us in any way, how do we even know that there is in fact a good photo under all the makeup? Moreover: do we even care? I guess it all depends on how we're experiencing the image as a viewer or as a critic.
Anyway, this whole thing made me go to the archives to look for any image that I had never processed because I thought it wasn't good enough to bother putting some makeup on it. Time for an exercise.
In this photo, if you take the tree out of the picture, and maybe also the broken window, you have absolutely nothing of interest left. The house itself, with the fake-brick front, is useless. I don't think the framing is good or bad, but the lack of anything really interesting kind of makes us feel that the comp is uninteresting as well. I don't remember what I had in mind when I shot this scene (in terms of colour or B&W, I mean), so I processed it both ways. I didn't like the results. I removed some of the bottom in an attempt to make the composition more interesting (you're seeing the cropped version here) and still didn't like the results. So I let a day go by and then looked at the photo(s) again. Today I didn't think they were as bad as I thought they were yesterday, so I posted them here.
I don't think a single photo would be enough to prove the above comment one way or the other, but this photo in particular is on its way to the shredder. If I had to choose between the two versions, I'd take the B&W though.
Thank you all again.