Thanks for the photos. I don't think there will be a "standard" shot of your last photo because the square is so wide. Might I suggest a road side shot from either the west (Zhongnanhai area) or the east.
I once entertained the idea of shooting this place taking reference to the past - of important occasions and parades long forgotten. But it was not be be.
Thank you for the tips! I will bear this in mind the next time I'm there. I probably go once a year.