I do like this a lot - love the dark sky and also the texture detail you're maintained in the stonework - is that the HDR software assisting with this?
We're all about Zone here Keith! - I used to worry it was complicated, but the Adams book got me on track, and I worked through some samples last year in tandem with SilverFX and it all worked out as described.
Regarding the 14mm lens - up there with the 23 and 35 as far as quality - and really well corrected optically