Hi Graham,
Nice to see you around again. Very nice views, did you shoot them with the Leaf back? Is the 1st picture of the Grand Mosque a stitched picture (the name includes "panorama")? Handheld in the mosque or on a tripod? Sorry about the multitude of questions, just curious.
In the GM1, I like composition and the placement of the minaret. It is a pity that we cannot see the peak of it, but it is just nitpicking.
The GM2 contains a good symmetry and the curves and the straight lines work well together, including the circle in the carpet on the floor. However, yet another nitpick, it is not 100% vertical. A 0.25 degrees CCW rotation would take care of it.
The cement plant is shot at twilight when there is still some definition in the sky, good timing. Was it really void of people or did you take a long exposure?
Thanks for sharing these.