Great photographs. Try hanging around kids and taking photos like that today and the police get called or a mother admonishes you within minutes. Few months ago at a local playground a college-age girl with an obviously new digital DSLR was at a playground. She was having such a nice time photographing the trees in the park, the people scenes, etc. And yes some of her shots likely included some kids in them, but she was not being obtrusive or rude in anyway that I saw. All of a sudden one mother boldly and rudely went up to her and yelled at her for taking photos of her children without her permission and that if she did not stop and leave immediately she was calling the police. The look of confusion on the poor girl's face had her speechless. The girl then turned, burst into tears and quickly left the park. It was all I could do to stop myself from telling that woman off.