I'd agree the lighting is a bit "flat" and would be better at a different time of day, although the sky is interesting and I think could be emphasized a bit more.
It's a bit "wide angle" and although it probably looked nice when you were there, I think the biggest problem is there is no real point of interest, although you have a nice leading diagonal running up to the ruins on the central rock.
The right hand side is not really adding much to the image and if anything, the wall tends to lead the eye away from the centre.
It could easily be cropped on the right by about 1/3, and I also find the row of houses very distracting.
I can't remember the exact layout there, but I think if you could have moved to left and down a bit, nearer to where the people are, you could then take the ruins against the dramatic sky, or at least against a less cluttered background.