most galleries have a no picture rule for the artwork. Aside from copyrights on modern works the vast majority of pictures would be people with P/s using flash. I saw one woman get told off at least 5 times at the Miro in Barcelona last year, AFAIAC they should have taken her camera after the second episode to be picked up at the exit
the stupid thing is there was enough light she could have turned off the flash and never been noticed (i may have been with a dslr, I only shot out on the roof where it was allowed.
Conversely the Louvre has no rules against photography so you can always find Mona Lisa by following the flashes
Great shots the first 2 as mentioned are really standout, the second has my stomach growling I love a good curry and some of the best are in London