Hi Lorna, and thanks for helping out here. Your photos are the kind of thing that drives this place.
About the time of day for your shots: You have a team in the interior of the Wat between 11:30 and 12:30. We have shots of another team (the Frat Boys) at the East gate to the Wat at around 11:30. And we have a shot of Mr. Blue Shirt in the middle of the outside south wall at around 11:30 am (my sun-shadow estimate).
So it looks like a few teams were there at the same time. I have never been there. Is it possible to get the feeling that you only see one team because of the walls and the sheer size of the place?
ETA: Opps, I mixed you up with the other photographer. So, that means, Wow! I really like your pictures. They are the best of the bunch. The question still applies. That is, how certain of The Frats' solitude are you?