I like how all of the children are in dark clothing this compliments the trees and chairs at the bottom of the picture. Also this creates a contrast with the snow. You can not see the facial expression of the children, but you get the feeling that they are all having a good time. I also like how in the distance the tress that are not directly focused are a lighter shade and fade off in the distance.
Enfants Dans La Premiere NeigeEdouard Boubat1947, Printed 1981Gelatin Silver Print, 14/100Gift of Thomas Brennan
https://luag.lehigh.edu/sites/luag.lehigh.edu/files/luf-82-1076-b-boubat-edouard-web.jpg