It's absolutely clear that the picture with a child being examined by the pediatrician symbolises the Ministry of Health. The second picture can be desiphered easily, too, because the rivulit and the trees on its vedge are parts of the nature. The government office which is responsible for the nature protection is called the Ministry of (the) Environment. I have some doubts as to the last picture with a worker. Most definetly it corresponds either to the Ministry of Labour or to the Ministry of Construction.