niece sigrd, to me the first shot is very interesting. there are, on three separate levels, a theme of "small vs big"; a) the lone pedestrian crossing the road at the left of the pic vs the huge crowd of pedestrians coming from the opposite side, b) the small red traffic light vs the big red ball in the middle of the pic, and c) the man on his tricycle vs the big motorcar (which was incidentally beating the light). if you like juiced-up colours, you can also try something like this;