I really like the first one and the deep blueness of it, but for me I would have loved if there was a little bit more headroom above the rocky sides of the quarry and the sky, as it feels a little cramped up there to me.
I also do lots of pano shots and this is something I often have to remind myself to do, is to zoom out a little more than I think I need to, so I give it plenty of space and enough room above and below, so that the files can be stitched together in a way that I can line them up and then crop them horizontally straight if I need to.
Dave