In a rather general way it seems to be the same all over the world. There is far too much paranoia by governments and they are transmitting it to the people.
Don't watch the wrong TV as you may see things the government doesn't want you to see.
Don't take pictures as you may be casing the joint.
Don't be against a war as you are helping the enemy.
These are all indications of governments who are paranoid and want to keep their populace 'in control', and all a bunch of childish nonsense. I wish we could be governed with someone with as much intelligence as the average gardener. (Please, I am not demeaning the intelligence of gardeners, just that they aren't highly regarded)
I really liked the art pieces, are they modern or ancient? Don't know how you got the innocent pictures of the subway. Here in the US you would have been swamped with police.
Also in the UK, as a musician friend just got back from England and he got harassed by the local police for taking a picture of his friend in front of a hotel.
Your country looks beautiful, and I wish you well in life.