Note the different colours they are wearing (brown/yellow; blue/white) Each coloured uniform connotes a different school. It is generally the private schools that have very different colours--blue or otherwise--from the usual brown bottom (skirt/shorts for girls/boys) and yellow top.
I didn't quite get the sharpness of the pictures--next time--but for sure, they seem to be happy going home around 3pm, when schools close!
