I love the bridge, and the beautiful colors. It seems to me like the bridge is slanted forward a little; I wonder if a teeny bit of straightening would help?
I actually like the original pretty well when I view it full screen; much more than I expected to from the thumbnail. Still, I think I'd prefer something between the first and second. On the first, the bridge is just a bit too dark and loses some detail that would be really nice to have. But the second, to me, is just too bright given the impending storm conditions of the sky--it's incongruous and just doesn't really work well, imo.
If you shoot again I'd be tempted to do an HDR on this to get the details in the bridge. Not a bright, cartoony HDR, but just enough to get more detail in some places that you've got in the original.