Overall, some good compositions but a very grey look.
I'd say this is the weakest of the set. There's a lot going on, but not really showing anything. The way the pole lines up with the horizon is a niggle for me. No real highlight.
I like this far better. Maybe a bit vacant on the left, but I like the depth and line of the wall. The lack of highlight doesn't bother me as much on this one. There's a fashion approach to black and white which starts at a dark grey and finishes at light grey, no real highlights or shadow. When it works well it gives an interesting metallic feel. When it works badly, it looks absolutely awful! I think you're close to getting it right with some of your shots, but not quite.
I like the idea in this one, though its not jumping off the page at me. Needs a highlight.
Best of the bunch. Lots of interest, yet minimal, the line of sheep really bringing something extra to it. By far the best composition giving a good sense of space.
If you can get the processing to work, then this would become more interesting. Its not doing much for me as is.