Gosh, I've been looking and looking at these for about 10-15 minutes, a back and forth debate going on in my little pea brain the whole time. I certainly understand there are times when an artist is a little uncertain of where some work is going, and finds it helpful to talk things through with other people. But I feel in general that if I reach that point before the work is really embarked on, I don't need advice - I need to move on to something else. Not sure exactly which situation applies to you with these images, but I did notice that in your message the words "doomed walk", "dull", "uninteresting" all came before the question "does it work?".
Having said that, I think these images do not work well viewed on a monitor. I suspect there are intriguing details in each image that are being washed out by monitor brightness. I think you will only know for sure if these are going to work as a small series of images (I don't really see a strong triptych coming from these) by printing them. I think you might need to play with scale (compare some 4X4 prints with 20X20 prints), and variations on toning protocols.
Paul