I really like the second image, one for the reason zafra52 mentioned (sky detail) but also the perspective, the only thing I would have like to see would be a slightly higher viewpoint **, this would get that last bit of road in that curves away around the clif, finalising the viewers trip thru the image. HOWEVER, given that you were standing on the railings and even if you were on my shoulders it would probably be a big ask
Good spotting on the BW conversion, these are very nicely converted and appropriate for the day and the conditions! The first is great for the deep blacks and contrast, I would also try a pano style crop on it also, may 10% off the top and bottom?
** Peter at work...
