Also for me I think in hard light B/W works much better than color.
I totally agree

I like both and I see them as complementary… Sky and ground! As individual shots, I have a preference for the second one, it makes me a bit dizzy!
Yes Francois, they were taken at almost the exact same point on the same road, with one shot looking down and the other looking almost straight up and I am so glad that you noticed this. And yes I can also agree with the 'Dizzy' feeling, because as I just mentioned, the camera was pointing almost straight up when I took the second shot, so it can feel a bit like that sensation you get when standing near to cliff edge when you look at it I think.
I prefer the first, because of the contrast and the more unusual subject, shadows look like walking people.
You know I hadn't seen that until you mentioned it here Thierry and yes it does, a bit like older people bent over slightly walking with a stoop kind of thing, so thanks for pointing this out for me - and isn't it amazing how other people/photographers can sometimes see things in one of our shots that we did not even see for ourselves?
I prefer #2. The highlights in #1 are too aggressive to me.
I agree Paulo it is indeed very 'contrasty', but on my computer (
hang on to your hats folks, here comes the standard cop out response...) it looks just fine to me - there, I said it

Thanks all, great feedback

Dave