Window with bars – N07.
From my Oman files: I found one with mostly straight walls! it’s a problem with these historic forts, there is not always much room, forcing me to use a wider angle lens than I would normally like. It tends to exaggerate the builders imperfections along with those of the lens.
David A Lockwood 
Exquisite set of images, David. I am struck by the lovely shadow detail along with the details in the bright landscape beyond.
Thank you Mic, it’s down to my Pentax spot meter and the good old zone system.