Putting these images up here so it’s easier…
Here are the things I’ve found or am seeing under scrutiny in Photoshop
#1 some sort of symbol or logo is appearing when you bump up the exposure. I tried to make it out but looks like a T and P, possibly TPT? I’ll let you decide.
When looking at photos like this for hidden things, one trick is to see what doesn’t seem to change or gets more defined. In this case, you can make out these faces. The more I looked at this, the more it seems to be that there are two photos which have been merged together. I can’t unmerge them, but you can start to see it there. My guess is that photo one is a the tower and background and photo two was a group shot of people smiling. Group shot possibly
Full exposed image file if you want to download it to see if you see anything.