1. The picture shows us two yards. We can see expensive cars and part of the street or even district.
2. I can assume that it is happening in America. Because they usually have such big houses and yards.
3. The boys are playing football. Maybe they have holidays and have an opportunity to meet with each other.
4. She is a housewife that is mowing the lawn. But maybe she has a day off and plans to do some household chores.
5. Yes, it looks so. Because all the characters of this pictures are calm. Nothing is bothering them.